39 Weeks Pregnant Symptoms: Week 39 Of Pregnancy And Prenatal Care

Updated:June 25, 2025 | Published:December 26, 2024 | ByPamela Li

39 weeks pregnant symptoms include physical and emotional changes as the body prepares for labor. 39 weeks pregnancy symptoms are characterized by cognitive changes, including forgetfulness and difficulty concentrating (pregnancy brain). Hormonal shifts cause acid reflux (GERD), leading to heartburn and nausea. Frequent Braxton-Hicks contractions are common, preparing the body for labor, but unlike true labor contractions, they are irregular and painless.

Backache worsens as the hormone relaxin loosens the joints, while the baby’s pressure on the spine adds discomfort. A sharp, shooting pain called lightning crotch occurs as the baby’s head moves into the pelvis. Insomnia increases, driven by physical discomfort, anxiety, and the urge to urinate. Rib pain arises as the uterus expands and the baby presses against the ribs. An instinct to nest causes a burst of energy to clean and organize.

Thirty-nine weeks are at full-term pregnancy. Signs of labor, such as regular contractions and cervical dilation, signal delivery is near. A 39-week pregnant belly typically has a fundal height of around 39 centimeters, which measures from the pubic symphysis to the top of the uterus. The belly size correlates with gestational age, making your baby bump between 37 and 41 centimeters. Belly growth accommodates the 39 week baby, now fully developed and ready for birth. The uterus extends above the navel, causing the belly to become more prominent as the pregnancy reaches the final stages.

Several factors affect the belly’s size, such as the mother’s BMI, the amount of amniotic fluid, and the size of the fetus. Women with higher BMIs often have slightly larger measurements, for example. However, fundal height, while used to monitor fetal growth, does not always accurately predict fetal health, as the World Health Organization concluded in 2016. Regular check-ups with your healthcare provider remain the best way to ensure the 39-week-old fetus and mother are progressing healthily.

It’s important to avoid certain activities and substances to protect the mother and baby during the 39th week. Avoid alcohol entirely, causing fetal alcohol spectrum disorders (FASD) and harming the baby’s brain development. Smoking and exposure to secondhand smoke increases risks of miscarriage, low birth weight, and premature birth. Recreational drugs such as marijuana or cocaine result in developmental issues and birth complications. Limit caffeine intake to under 200 mg per day to avoid problems like low birth weight and sleep disruption. Avoid eating close to bedtime to prevent heartburn and discomfort.

Managing stress is crucial. High-stress levels worsen sleep problems, so practicing relaxation techniques is recommended. Hydrate well to prevent dehydration, which exacerbates nausea and heartburn, and avoid spicy foods which trigger discomfort.

Potential complications at 39 weeks include excessive bleeding, preeclampsia, stillbirth, severe headaches, and mood disorders. Excessive bleeding indicates placenta previa or placental abruption, which are medical emergencies. Preeclampsia is characterized by high blood pressure and, if untreated, causes organ damage. Reduced fetal movements, depression, and anxiety are warning signs of complications.

A partner must support the mother at 39 weeks by sharing responsibilities, offering physical support with daily tasks, and providing emotional support. Simple gestures of affection, active listening, and engaging in relaxing activities together help reduce stress and strengthen the bond between partners during the last weeks of pregnancy.

Prenatal tests during week 39 include biophysical profiles (BPP), blood tests for infections, and monitoring fetal well-being. Prenatal screenings help detect any issues with fetal health and maternal conditions like hypertension. Consult with your healthcare provider regularly and report any concerning symptoms such as fever, decreased fetal movements, or severe pain to ensure a healthy delivery.

Continue taking essential prenatal vitamins such as calcium, iron, folic acid, and iodine to support maternal and fetal health as you approach labor.

How many months is 39 weeks of pregnancy? 39 weeks pregnant in months is 9 months and 4 weeks, or almost 10 months in the third trimester.

What is 39 weeks pregnant in months? 39 weeks pregnant is 9 months and 3 weeks within the third trimester of pregnancy. You are in the tenth month of pregnancy.

What Are The Pregnancy Symptoms During Week 39?

39 weeks pregnant symptoms include pregnancy brain, GERD, frequent contractions, backache, and lightning crotch. 39 weeks pregnancy symptoms are listed below.

• Pregnancy Brain: Pregnancy brain refers to cognitive changes like forgetfulness, confusion, poor concentration, increased absent-mindedness, and disorientation among pregnant women. Cognitive changes occur as the mother’s body redirects glucose supply to support the growing fetus, essential for brain functioning. Pregnancy brain is common in the third trimester and affects about 81% of expecting mothers.
• Gastroesophageal Reflux (GERD): Gastroesophageal reflux involves the backflow of stomach acid to the esophagus, causing common symptoms like heartburn and nausea. Increased progesterone levels during pregnancy put pressure on the lower esophagus, causing acid backflow. GERD affects about 40-85% of pregnant women, usually from the first trimester and persisting until the end of pregnancy.
• Frequent Braxton-Hicks Contractions: Braxton-Hicks contractions (“false labor pains”) are irregular and painless contractions, preparing the body for true labor without causing cervical dilations. Braxton Hicks contractions result from the tightening and relaxing of uterine muscle, usually lasting less than 30 seconds but sometimes extending up to 2 minutes. Meanwhile, real labor contractions occur more regularly, last longer (30 to 90 seconds), and increase in duration over time.
• Backache: Backaches occur due to hormonal shifts and pregnancy-related body changes, causing physical discomfort and difficulty moving around. Backache often worsens as the hormone relaxin loosens the joints, and the baby presses on the spine. Back pain affects about 40.8% of pregnant women, while 86.8% experience low back pain in the third trimester, according to a 2018 study from Turkey titled “Musculoskeletal pain and symptoms in pregnancy: a descriptive study,” conducted by Serdar Kesikburun et al. at the University of Health Sciences, Gülhane School of Medicine and published in Therapeutic Advances in Musculoskeletal Disease.
• Lightning Crotch: Lightning crotch, or symphysis pubis dysfunction (SPD), occurs when the pelvic girdle joint becomes overly relaxed, leading to increased vaginal and pelvic pressure. SPD is often associated with pelvic instability and hormonal changes like increased progesterone, estrogen, and relaxin levels. Common symptoms of SPD include pubic pain, pelvic pain, lower abdominal pain, and back pain, which worsens when doing daily activities like walking and climbing stairs. SPD typically worsens throughout the third trimester and disappears after giving birth.
• Insomnia (Trouble Sleeping): Insomnia is characterized by persistent difficulty falling or staying asleep, leading to increased fatigue, naps, or feeling sluggish throughout the day. Worsening pregnancy symptoms, including backache, physical discomfort, frequent urination, and nausea, often contribute to sleeping difficulties. Insomnia typically worsens during the third trimester and affects approximately 73.5% of pregnant women, according to a 2017 study titled “Managing Sleep Disorders during Pregnancy,” conducted by Hrayr P. Attarian, MD et al. at Northwestern University Feinberg School of Medicine and published in Gender and the Genome.
• Stress & Anxiety: Anxiety involves constant feelings of worry and nervousness, sometimes accompanied by other symptoms like loss of appetite. Rapid hormonal fluctuations often contribute to feelings of stress and anxiety, leading to sudden changes in maternal emotional state (mood swings). Stress and anxiety are not uncommon in late pregnancy as increasing concerns regarding childbirth and motherhood arise.
• Rib Pain: Rib pain occurs due to physiological and hormonal changes during pregnancy. Pregnant women often experience pain as the baby pushes against the ribs and the uterus expands upwards. Rib pain typically worsens in late pregnancy when the baby kicks in a head-down position. The hormone relaxin contributes to discomfort by loosening the joints around the rib cage, making the ribs more susceptible to strain.
• Nesting: Nesting refers to the sudden, instinctive drive to prepare a home or space for the upcoming baby. Expectant mothers often experience an urge to nest during the third trimester, feeling a burst of energy to clean, organize, and get things ready for the baby’s arrival. Nesting is typically linked to hormonal changes and serves as a protective instinct for the vulnerable baby, according to a 2020 study titled, “Nesting behaviours during pregnancy: Biological instinct, or another way of gendering housework?” by Arianne Shahvisi Brighton at Sussex Medical School and published in Women’s Studies International Forum.
• Labor: Labor is a three-stage process involving the delivery of the fetus and placenta from the uterus. The first stage of labor begins when contractions start. The second stage begins with complete cervical effacement (shortening and thinning) and dilation (at 10 cm) and ends at the baby’s delivery. The final stage occurs when the placenta is expelled from the mother’s body. Labor onset is typically indicated by regular and painful contractions, mucus plug discharge, bloody show (bleeding or leaking fluid from the vagina), and cervical effacement and dilation (widening). Other symptoms include leaking fluid. Cramping at 39 weeks pregnant is a sign of active labor. 39 weeks pregnant symptoms not to ignore include different discharge, Intrahepatic Cholestasis of Pregnancy (ICP), signs of pre-eclampsia, leaking fluid, dizziness and fainting, fever/chills, and pain or cramping.

What Are The Major Signs Of Labor At 39 Weeks Pregnant?

Major signs of labor not to be ignored at 39 weeks pregnant include different discharge, Intrahepatic Cholestasis of Pregnancy (ICP), signs of pre-eclampsia, leaking fluid, dizziness and fainting, fever/chills, and pain or cramping. Here are 7 symptoms not to be ignored in the 39th week of pregnancy.

• Different Discharge: Normal discharge is typically thin, clear, or milky white with a mild odor. Abnormal discharge is foul-smelling and ranges in color from dirty white to yellowish-green, often caused by vaginal infections. Vaginal candidiasis, in particular, often leads to pregnancy complications such as miscarriage, premature birth, and low birth weight. Pink or brown discharge indicates the presence of blood and must be monitored closely. A “bloody show” occurs when the mucus plug (a protective seal for the cervix during pregnancy) dislodges as the cervix softens and widens in preparation for labor. The discharge is roughly the size of a tablespoon and resembles a glob of bloody mucus. A gush of clear or slightly yellow fluid indicates the rupture of the amniotic sac, another sign of imminent labor. Consult your OB-GYN immediately if you notice any changes in the amount, color, or smell of your vaginal discharge or if you notice other unusual symptoms like vaginal bleeding, itching, and burning.
• Intrahepatic Cholestasis of Pregnancy (ICP): Intrahepatic cholestasis of pregnancy is characterized by pruritus (severe skin itching) and increased bile acid levels, typically occurring in the third trimester. The most prominent symptom of ICP is an itchy body, particularly in the hands and feet. The itching typically worsens at night, often leading to insomnia and depression. Symptoms of ICP usually resolve naturally after delivery, but the mother has a high risk of recurring cases of ICP in future pregnancies.
• Signs of Preeclampsia: Preeclampsia is a severe pregnancy complication typically characterized by high blood pressure, protein in the urine, and swelling. Pregnant women with preeclampsia experience persistent headaches and visual symptoms, such as blurred vision and seeing flashing lights and spots. Mothers experiencing Preeclampsia symptoms must contact a healthcare provider for monitoring, especially approaching the end of pregnancy.
• Leaking Fluid: Leaking fluid (“water breaking”) is a sign of labor nearing, especially when approaching full-term pregnancy at 39 weeks. Changes to your cervix cause the amniotic sac to break, releasing fluid from your body. Your cervix softens, shortens, and dilates, preparing you for childbirth. Fluid leaking from your vagina at 39 weeks prompts immediate attention from your healthcare provider.
• Dizziness and Fainting: Dizziness and fainting affect approximately 10% of women in late pregnancy, according to a 2023 study titled “Trends and immediate outcomes of syncope during pregnancy: a narrative review.” Changes in blood volume, cardiac output, and hormones result in lightheadedness and an increased risk of blacking out. Dizziness and fainting are signs of complications such as dehydration and anemia, making prompt attention vital.
• Fever/Chills: A fever of 100.4°F or higher during 39 weeks of pregnancy must not be ignored, as a high temperature suggests infection like chorioamnionitis (infection in the membrane surrounding the baby). The mother’s immune response against infections disrupts the baby’s cellular and protein development, resulting in birth defects such as oral clefts, neural tube defects, congenital heart defects, and limb malformations.
• Pain or Cramping: Regular pain or cramping lasting between 30 and 90 seconds is a sign of labor contractions. True labor pains typically start in the midback and wrap towards the midline in increasing intensity. Call your OBGYN immediately if you experience painful contractions with other symptoms such as water breaking, cervical dilation, extreme backache, pelvic pain, and bloody vaginal discharge.

Contact your OB/GYN immediately if you experience these symptoms to be admitted to the hospital at 39 weeks pregnant.

How To Know If Your Water Has Broken?

To know if your water has broken, see if you experience a popping sensation or a mild pop in the vagina or perineum, followed by a gush or trickle of clear or pale yellow watery fluid leaking from the sac. This fluid is thin, odorless, and may feel uncontrollable, unlike urine or normal pee. Some women report feeling pressure and then a sense of relief when the sac bursts, releasing amniotic fluid. The fluid might soak your underwear with a sudden gush or a slow leak of clear or sweet-smelling fluid. You notice fetal movement and contractions following the release of the fluid. Contact a healthcare professional or your OBGYN to confirm labor if you’re unsure whether it’s your water breaking or urine or if you experience a slow leak or gush.

What Is The Importance of Understanding Being 39 Weeks Pregnant?

The importance of understanding being 39 weeks pregnant is to be prepared for the final stage of week 39 pregnancy. You are at full-term pregnancy, and the baby has fully developed. Labor is possible at any time, making monitoring for labor signs essential.  Frequent contractions, either Braxton-Hicks or labor contractions, signal readiness for delivery. Regular contractions increasing in frequency and intensity indicate when to go to the hospital.

Managing GERD (gastroesophageal reflux disease) remains essential as hormonal changes relax muscles between the stomach and esophagus, causing discomfort. Eating smaller meals, avoiding spicy foods, and staying upright after eating helps reduce symptoms. Pregnancy week by week can present various challenges, such as backache and pressure from the baby’s weight due to stretched abdominal muscles and strain on the spine. Staying mobile, using a supportive chair, and sleeping on the side help ease pain.

Recognizing the developmental milestones of your 39-week baby is crucial. The 39-week fetus, about the size of a mini watermelon, has a biparietal diameter (BPD) of 94 mm, indicating full growth. The brain and lungs mature, and body systems function properly, signaling readiness for life outside the womb.

Monitoring maternal health becomes crucial to prevent complications. Symptoms of preeclampsia, such as severe headaches or dizziness, require immediate attention. Prenatal check-ups track the baby’s size, weight, and overall well-being through ultrasounds and tests.

Pregnancy brain, or forgetfulness, continues, making organization necessary before labor. Preparing a birth plan, knowing the hospital route, and packing hospital bags help ease anxiety.

Maintain natural activities at 39 weeks pregnant, like walking or gentle exercises. Avoiding harmful substances like alcohol, caffeine, and raw foods is important for maternal and fetal health.

A diet rich in calcium, iron, and folate supports maternal energy and the baby’s final development. Staying hydrated and rested prepares the body for labor and delivery.

Partner support, such as offering physical assistance, emotional comfort, and participation in prenatal visits, ensures the mother feels supported as delivery approaches.

Understanding body changes and the baby’s readiness ensures the mother and baby are well-prepared for safe delivery at 39 weeks.

What To Expect At 39 Weeks Pregnant?

A 39 weeks pregnant mother experiences various physical and emotional symptoms as the body prepares for labor. Forgetfulness and difficulty concentrating occur due to the brain’s energy being redirected to the growing baby. Hormonal changes relax the muscles between the stomach and esophagus, allowing acid to flow back up, leading to gastroesophageal reflux (GERD)

Frequent Braxton-Hicks contractions, or “false labor,” help the body prepare for actual labor.  Persistent backaches are third-trimester symptoms that worsen due to relaxin loosening the joints and the pressure from the baby on the spine. Lightning crotch, a sharp pain caused by pelvic pressure, is felt as the baby’s head moves lower in the pelvis.

Trouble sleeping (insomnia) is common, often due to physical discomfort, frequent urination, or anxiety about labor. Increased anxiety and stress about the upcoming birth intensify mood swings. Rib pain occurs as the baby presses against the ribs. Many mothers feel an intense urge to clean or organize, an instinct called “nesting.”

Signs of labor take priority at week 39 of pregnancy, including regular contractions, mucus plug discharge, and cervical dilation. The fetus, weighing around  3403 grams (120.04 ounces or 7.50 pounds) and resembling the size of a mini watermelon, has fully developed lungs and functional body systems (full term pregnancy), signaling readiness for life outside the womb. Regular prenatal visits ensure maternal and fetal health remain stable during the third trimester of pregnancy.

How Is The Baby Developing At 39 Weeks Pregnant?

Your 39-week baby is fully developed and ready for birth. The baby weighs approximately 3403 grams (120.04 ounces or 7.50 pounds) and resembles the size of a mini watermelon. Key milestones mark the final stages of fetal development.

Eyes fully connect to the brain, enabling light detection through the womb. Most body systems function well, with developed skin and well-formed muscles. Lungs are able to breathe air, though maturation continues until around 8 years old. The digestive system, especially the intestines, is ready to absorb nutrients after birth.

The brain of the fetus at 39 weeks develops rapidly, focusing on myelination to enhance communication between brain regions. Neural networks for sight, movement, and hearing become fully established.

Lanugo disappears, replaced by vellus hair. The skin thickens, becoming protective and acidic to fight infection. Vernix, a waxy substance on the skin, continues to shed.

The skeletal system strengthens, with fully grown femurs and humerus bones. Size, weight, and developed organs indicate the baby’s readiness for life outside the womb.

How Big Is Your Baby At Week 39 Of Pregnancy?

Baby size at 39 weeks is better measured in biparietal diameter, head circumference, abdominal circumference, femur length, and humerus length rather than crown-rump length (CRL). The 39-week fetus is about the size of a mini-watermelon. The 50th percentile measurements for 39-week fetal growth are as follows: the biparietal diameter (BPD) is 94 millimeters, the head circumference (HC) is 337 millimeters, the abdominal circumference (AC) is 350 millimeters, the femur length (FL) is 73 millimeters, and the humerus length (HL) is 64 millimeters.

The 39-week-old fetus weighs 3403 grams (120.04 ounces or 7.50 pounds), according to the 2017 World Health Organization Fetal Growth Charts, published in PLoS Medicine.

What Are The Key Developmental Milestones Of Babies At Week 39 Of Pregnancy?

Key developmental milestones of babies at week 39 of pregnancy include eye, body systems, brain, size and weight, and hair. Here are 7 key developmental milestones of babies in week 39.

1. Eye: The fetus begins to open and close the eyes at week 33 and detects light through the mother’s belly by week 37. Neural connections between the eyes and the brain are fully developed and functional by 39 weeks of pregnancy, improving the baby’s visual functions.
2. Body Systems: Your baby’s major organs and body systems are nearly fully developed and ready for birth. The skin is now thicker and stronger, consisting of five layers and retaining less water. The musculoskeletal system is almost complete, with only a few new muscle cells forming after 39 weeks. The lungs are developed and functional, although maturation continues until age 8. The stomach is fully developed, and the intestines have different-shaped villi (tiny, finger-like projections) which help the baby absorb nutrients.
3. Brain: The amount of myelinated white matter in the baby’s brain increases from 1-5% during 36-40 weeks of pregnancy, enhancing communication between different brain regions. Connections between and within the brain hemispheres are developing rapidly, improving the baby’s cognitive functions. Critical neural networks responsible for functions like visual, motor, and auditory processing are already well-developed at 39 weeks pregnant.
4. Size and Weight: Your baby at 39 weeks of pregnancy weighs around 3403 grams (120.04 ounces or 7.50 pounds) and measures roughly the size of a mini watermelon, according to the 2017 World Health Organization Fetal Growth Charts, published in PLoS Medicine.
5. Hair: Lanugo (the delicate hair covering the fetus’ body) is shed and replaced by a fine, thin, and poorly pigmented hair called vellus. The scalp of a 39-week-old baby consists of vellus, resulting in short and silky hair at birth. A thicker and coarser terminal hair replaces the vellus at 2 years of age, leading to a more noticeable full head of hair.
6. Lungs: Your baby’s lungs are at the final stage of fetal development at 39 weeks, but only reach full maturity at around 8 years of age. Tiny air sacs called alveoli form at the end of the respiratory branch to facilitate gas exchange for the baby’s first breath outside the womb. A full-term baby, including a 39-week-old fetus, has around 100-150 million alveoli. Surfactants are developed for air sacs to prevent the alveoli from collapsing and make breathing easier.
7. Skin: Fetal skin has fully matured at 39 weeks, with all five layers developed. Skin acidity is elevated to fight against infection, and the vernix caseosa (a protective waxy substance) continues to shed from the skin. The toenails and fingernails are on the tips of the hands and toes.

How To Know If Your Baby Is Healthy During Week 39 Of Pregnancy?

To know if your baby is healthy during week 39 of pregnancy, perform ultrasound scans, attend prenatal appointments, monitor maternal health, track fetal size and weight, and perform prenatal screenings. Here are 5 ways to know if your baby is healthy during week 39 of pregnancy.

• Perform Ultrasound Scans: Ultrasound scans provide a detailed view of your baby’s anatomy, including the baby’s bones, skull, brain, lungs, liver, and other organs. Ultrasounds help measure your baby’s size from head to heel, track fetal weight, and monitor the baby’s growth and development in the last few weeks of pregnancy. Ultrasound results help identify potential complications immediately,  ensuring your baby’s body is developing normally.
• Attend Prenatal Appointments: Regular checkups with your OBGYN help track your baby’s health and ensure proper development. Your OBGYN assesses your blood pressure, weight gain, and other factors to ensure normal progress. Be sure to report any unusual symptoms, such as severe headaches, vision problems like blurring, light sensitivity, or seeing spots and flashing lights, to address potential complications. High-risk pregnancies need more frequent surveillance as you get closer to delivery at week 39.
• Monitor Maternal Health: Your health is a good indicator of your baby’s well-being. Maintain a healthy diet, stay hydrated, exercise regularly, manage stress, and undergo regular checks from your healthcare provider. Your OBGYN (obstetrician-gynecologist or OB-GYN) or midwife visits must include monitoring your weight and blood pressure, which are important indicators of your health and your baby’s development.
• Track Fetal Size and Weight: A 39-week-old baby is about the size of a mini watermelon, weighing about 3403 grams (120.04 ounces or 7.50 pounds). Scheduling ultrasound scans with your OBGYN helps assess fetal weight to ensure your baby develops as expected.
• Perform Prenatal Screenings: Prenatal tests are crucial for monitoring your baby’s health and assisting in important discussions and decisions with your OBGYN. Cell-free DNA (cfDNA) testing tracks your baby’s growth and analyzes DNA through the mother’s bloodstream to identify conditions like Down Syndrome and trisomy 18. Maternal serum alpha-fetoprotein (MSAFP) screening (the quad screen) evaluates the risk of chromosomal abnormalities or neural tube defects.

What Are The Changes In The Mother’s Body At 39 Weeks Pregnant?

Changes in the mother’s body at 39 weeks pregnant include pregnancy brain, gastroesophageal reflux (GERD), Braxton-Hicks contractions, backache, and lightning crotch. Here are 10 changes to the mother’s body at week 39 of pregnancy.

• Pregnancy Brain: Forgetfulness, confusion, and poor concentration result from energy prioritization for fetal brain development.
• Gastroesophageal Reflux (GERD): Progesterone increases, causing stomach acid backflow into the esophagus, leading to heartburn and nausea.
• Frequent Braxton-Hicks Contractions: Frequent irregular, painless uterine contractions occur without cervical dilation.
• Backache: Relaxin loosens joints, and the baby’s weight puts pressure on the spine, worsening back pain as pregnancy advances.
• Lightning Crotch (Symphysis Pubis Dysfunction): Hormonal changes and pelvic instability trigger sharp vaginal and pelvic pain.
• Insomnia: Physical discomfort, frequent urination, and anxiety disrupt sleep, causing daytime fatigue.
• Stress & Anxiety: Hormonal changes and concerns related to childbirth and motherhood intensify stress.
• Rib Pain: Baby movements, uterine pressure on the ribs, and loosening joints cause discomfort in the rib area.
• Nesting: A surge of energy drives an instinctive urge to clean and organize in preparation for the baby’s arrival.
• Labor Signs: The body signals labor with regular contractions, mucus plug discharge, cervical dilation, and possible amniotic fluid leakage.

How Big Is A 39 Weeks Pregnant Belly?

A 39 weeks pregnant belly has a fundal height of around 39 centimeters. The fundal height or symphysis-fundal height (SFH) is the distance from the pubic symphysis (a joint at the front of the pelvis) to the top of the uterus (fundus). The fundal height typically correlates with the gestational age. Therefore, a 39-week baby bump measures around 39 centimeters, between 37 to 41 centimeters​​. The expanding uterus grows to accommodate the growing fetus. The 39-week pregnant uterus has grown enough to be palpated above the navel​ level.

Several factors affect uterine size and growth rate, such as the mother’s body mass index (BMI), the number of pregnancies, variations in amniotic fluid levels, or the different sizes of the fetus​. For example, women with higher BMI tend to have a slightly larger fundal height measurement than women with lower BMI.

Fundal height measurement has been routinely used in clinical practice to monitor fetal growth. Still, the 2016 World Health Organization (WHO) ANC Guidelines concluded there was inadequate evidence for using the SFH to predict fetal health.

What Are The Safe And Natural Methods To Encourage Normal Delivery?

Safe and natural methods to encourage normal delivery at 39 weeks pregnant include exercise, nipple stimulation, and sweeping of the membranes. Labor induction is getting the uterus to contract before labor begins naturally if there is concern for the health of the baby or the mother. Labor induction must be initiated with your OB-GYN’s approval. Here are 3 ways to naturally encourage spontaneous delivery in week 39.

• Exercise: Moderate physical activities like walking increase uterine contractions, triggering labor onset. Walking for 30 minutes three times a week helps low-risk pregnancies to deliver at term, according to a 2020 study titled “Physical exercise at term for enhancing the spontaneous onset of labor: a randomized clinical trial” by Isabel Barros Pereira et al.
• Nipple Stimulation: Massaging the breasts and nipples for 15 minutes thrice a day helps the onset of spontaneous labor and increases the likelihood of vaginal delivery, according to a 2022 study titled “Cervical ripening and induction of labor,” by Vernon Wheeler et al., published in American Family Physician. Oxytocin levels increase when the nipples are stimulated, resulting in uterine contractions and cervical softening.
• Sweeping (Stripping) Membranes: Membrane sweeping involves a medical professional inserting fingers into the cervix and using circular sweeping motions to separate the amniotic sac from the uterine wall. The separation stimulates the release of hormones, such as prostaglandins, resulting in cervix softening and inducing labor, according to the 2022 study.

Labor induction must be conducted under the recommendation and guidance of a healthcare professional. Contact your OB/GYN for inducing options and questions.

What Are The Best Tips For Pregnant Mothers At Week 39?

The best tips for healthy pregnancy during week 39 include eating a healthy diet, engaging in physical activity, preparing for labor and delivery, and preparing for parenting. Here are 6 tips for a healthy pregnancy at week 39.

• Eat a Healthy Diet: Prioritize nutrition and food safety, as food-borne illnesses like listeriosis pose dangers during pregnancy. Ensure you consume sufficient protein, vegetables, omega-3 fatty acids from sources like salmon and walnuts, and good fats to support your health and your baby’s development. Avoid high-risk foods like soft cheeses, cold seafood, sandwich meats, raw or undercooked meats, pre-prepared salads, uncooked bean sprouts, and raw eggs.
• Engage in Physical Activity: Physical activity at 39 weeks of pregnancy positively impacts physical and psychological well-being. Gentle exercises like walking and stretching help improve circulation and alleviate discomfort, such as back pain. Pelvic floor exercises help strengthen the pelvic muscles in preparation for labor. Physical activity boosts energy levels, improves mood, and promotes better sleep. Start an exercise routine with gradually increasing intensity to ensure safety and avoid strain.
• Prepare for Labor and Delivery: Expecting parents must organize key items, such as your hospital bag, including clothes, toiletries, and sanitary pads, and have important numbers readily accessible, like your OBGYN’s contact. Know when to call your OBGYN if labor starts, and familiarize yourself with birthing center options. Consider installing a car seat for your baby’s safe transport home.
• Prepare for Parenting: Consulting family and friends offers valuable insights and practical tips for preparing for parenthood. Shared experiences offer guidance and help expecting parents face challenges with increased confidence. Attending a childbirth class helps provide opportunities to learn important information and connect with other parents.
• Stay Engaged With Your Healthcare Provider: Consult your OBGYN regularly for consistent maternal and fetal health monitoring. Routine tests such as ultrasound provide information about your baby’s growth and position and the size of your abdomen. Be sure to report any suspicious symptoms or concerns to your healthcare provider to ensure timely intervention if needed.
• Track Fetal Movement: Monitor your baby’s movements by doing kick counts to track activity more systematically. A noticeable decrease in fetal movement patterns sometimes indicates complications, such as stillbirth or fetal growth restriction. Routine assessments, like ultrasounds, help monitor your baby’s health. It’s critical to remain attentive to your baby’s daily activity patterns and promptly alert your OB-GYN if you notice any drastic changes or movements suddenly stop.

What Types Of Foods Are Beneficial To Eat During Week 39 Of Pregnancy?

Types of foods beneficial to eat during week 39 of pregnancy include foods rich in calcium, iron, iodine, choline, vitamins A, C, D, B6, B12, and folate to support your health and your baby’s development. Here are 15 beneficial foods to eat during week 39 of pregnancy.

• Calcium-rich Foods: Calcium helps build strong bones and teeth. Good sources of calcium include yogurt, fat-free or low-fat dairy products, dark green leafy vegetables, and cheese.
• Iron-rich Foods: Iron is essential for red blood cell production. Consume lean red meat, legumes (beans, peas, and lentils), prune juice, and iron-fortified cereals.
• Iodine-rich Foods: Iodine is essential for healthy brain development. Eat dairy products, seafood, and eggs.
• Choline-rich Foods: Choline supports brain and spinal cord development. Try peanuts, edamame, beef liver, and soy products.
• Vitamin A-rich Foods: Vitamin A aids in forming red blood cells and using nutrients. Good options include sweet potatoes, carrots, kale, and green leafy vegetables.
• Vitamin C-rich Foods: Vitamin C supports healthy gums and bones. Consume broccoli, citrus fruits, mixed greens, and strawberries.
• Vitamin D-rich Foods: Vitamin D builds bones and teeth. Get Vitamin D from fatty fish like salmon, and fortified milk.
• Vitamin B6-rich Foods: Vitamin B6 helps with red blood cell formation. Try bananas, whole-grain cereals like oatmeal, and ham.
• Vitamin B12-rich Foods: Vitamin B12 maintains the nervous system. Good sources of Vitamin B12 include fish, milk, and poultry.
• Folic Acid-rich Foods: Folate is important for preventing birth defects. Eat fortified cereals, legumes, orange juice, and dark green leafy vegetables.
• Grains: Grains supply energy and fiber. Try quinoa, whole grains such as brown rice, whole-wheat pasta, and barley.
• Fruits: Fruits provide vitamins and minerals for your baby’s growth. Incorporate fresh fruit, dried fruit, bananas, avocados, and frozen fruit.
• Vegetables: Vegetables provide essential vitamins and minerals. Try canned vegetables, mixed greens, kale, or frozen vegetables.
• Protein: Protein supports tissue growth and development. Choose eggs, seafood, lean meats, nuts, legumes (like beans, peas, and lentils), and soy products.
• Dairy: Dairy provides calcium and protein. Consume pasteurized milk, cheese, yogurt, and other fat-free or low-fat dairy products for calcium and vitamin D.

How Can You Manage Back Pain And Discomfort At 39 Weeks Pregnant?

You can manage back pain and discomfort at 39 weeks pregnant by moving around, using comfortable seating, doing physical therapy, and sleeping on your side.

• Move Around: Walking and moving around instead of sitting and standing for long periods reduces back pain, according to a 1998 study titled “Identification and management of pregnancy-related low back pain.” Pregnant women who cannot avoid prolonged standing are encouraged to shift weight from one foot to another and change posture often. Pelvic tilts and rocking movements ease low back pain. Try low-impact activities like water exercises to relieve muscle tension in the back.
• Use Comfortable Seating: Tilt the front of your seat downward to decrease hip flexion and reduce pelvic and lower back pain. Support one foot with a small footstool to help with sitting posture. Use ergonomic chairs or back cushions to support your spine when you sit. A small pillow or rolled towel on the back is a good alternative to back supports.
• Do Physical Therapy: Progressive muscle relaxation (PMR) therapy involves tightening and relaxing muscles to reduce muscle pains. PMR significantly reduces back pain, according to a 2020 study titled “Comparative efficacy and safety of conservative care for pregnancy-related low back pain: a systematic review and network meta-analysis.” Thermotherapies such as applying ice on the skin relieve pain, especially for pregnant women with lumbar disk herniation.
• Sleep on Your Side: Sleeping on your side helps prevent your growing uterus from placing weight and strain on your spine. Use cushions to support the top leg and abdomen while side-lying to prevent your spine from twisting. Place a towel roll or cushion at your waist to reduce lower back pain when lying on soft beds.

What Exercises Can You Do During Week 39 Of Pregnancy?

Exercises you can do during week 39 of pregnancy include walking, swimming, pelvic floor exercises, stretching, and stationary cycling, according to the 2020 World Health Organization (WHO) Guidelines on Physical Activity and Sedentary Behaviour. Here are the 5 exercises you can do during week 39 of pregnancy.

• Walking: Walking is a low-impact exercise that helps improve circulation, enhance stamina, and keep pregnant women active without straining the body. Walking is great for weight management and relieving stress while promoting overall fitness.
• Swimming: Swimming is an excellent full-body workout reduces joint discomfort, support your weight, and keep you cool while exercising. Swimming is a gentle, low-impact cardiovascular activity which protects the joints and alleviates common discomforts like back pain.
• Pelvic Floor Exercises: Strengthening the pelvic floor muscles is essential in the final weeks to assist with labor, reduce the risk of urinary incontinence, and prevent leakage when you laugh, sneeze, or cough. Daily pelvic floor exercises help relax pelvic floor muscles, easing labor and delivery.
• Stretching: Stretching improves flexibility and reduces tension, especially in the lower back, hips, and legs. Stretching activities help alleviate aches and pains, promote relaxation, and improve overall comfort.
• Stationary Cycling: Stationary cycling is a safer alternative to outdoor cycling and provides cardiovascular benefits without the risk of falling.

Aim for at least 150 minutes of moderate-intensity activity per week. Stay hydrated and avoid high-risk activities like high-intensity exercises and contact sports. Prioritize comfortable movements and avoid overexertion.

What Are The Things To Avoid At 39 Weeks Pregnant?

Things to avoid at 39 weeks pregnant include alcohol, smoking, recreational drugs, caffeine, eating close to bedtime, and raw foods. Here are 12 things you must avoid at 39 weeks pregnant.

• Alcohol: Completely avoid alcohol during pregnancy. Consuming alcohol results in severe developmental issues for the baby, such as fetal alcohol spectrum disorders (FASD), and negatively affects cognitive and behavioral development, according to a 2020 study titled “Alcohol Use in Pregnancy” from Oregon Health and Science University.
• Smoking and Secondhand Smoke: Smoking or exposure to secondhand smoke increases risks like miscarriage, premature birth, and low birth weight. Smoking in pregnancy poses severe risks, as outlined by a 2020 study by Gillian S. Gould et al., published in the International Journal of Environmental Research and Public Health. Seek help to quit immediately if needed.
• Recreational Drugs: Recreational drugs like marijuana, cocaine, and others cause harm to the baby, increasing risks for birth complications like low birth weight and developmental delays.
• Caffeine: Keep caffeine intake to a moderate amount (less than 200mg daily). Overdoing caffeine increases the chances of complications like low birth weight and heartburn. Consider switching to decaffeinated beverages to reduce caffeine intake.
• Eating Close to Bedtime: Avoid eating close to bedtime, which often triggers heartburn during late pregnancy. The discomfort results in disrupted sleep, making it more difficult to find a comfortable sleep position.
• Raw or Undercooked Foods: Avoid raw or undercooked meats, fish, and eggs, which typically carry harmful bacteria and cause infections like listeriosis or salmonella during week thirty-nine of pregnancy.
• Deli Meats and Unpasteurized Foods: Unless heated thoroughly, avoid deli meats and unpasteurized dairy products, which often harbor harmful bacteria.
• Heavy Lifting and Strenuous Activities: Avoid lifting heavy objects or engaging in strenuous physical activities like standing or walking for long periods at week thrity-ninth week, which cause discomfort and, sometimes, premature labor.
• Hot Tubs and Saunas: Steer clear of hot tubs and saunas as exposure to high heat causes stress to your baby and leads to complications.
• Stress: Avoid high-stress situations as much as possible. Nerves and anxiety keep you awake, so focus on relaxation techniques like breathing exercises, meditation, or gentle walks in the park to manage stress levels.
• Fluids: Stay hydrated to avoid dehydration, which causes complications. Not drinking enough fluids leads to discomfort and worsens common symptoms like nausea or heartburn.
• Spicy Foods: Avoid spicy foods to avoid symptoms like heartburn. Opt for milder foods, especially in the evening.

What Are The Possible Complications That Can Happen At 39 Weeks Pregnant?

Possible complications that can happen at 39 weeks pregnant include excessive bleeding, preeclampsia, mood and anxiety disorders, stillbirth, and severe headaches. Here are 5 possible complications that can happen at 39 weeks.

• Excessive Bleeding: Vaginal bleeding during the third trimester often signals a severe problem. Sudden and painless bleeding with blood indicates placenta previa (the placenta covers the cervix), while clotted blood signals placental abruption (early separation of the placenta from the uterus). Heavy vaginal bleeding, especially when accompanied by severe cramping in the uterus or pelvic pain, often suggests an abnormal lie of the fetus. Excessive vaginal bleeding increases the risk of low birth weight and perinatal death.
• Preeclampsia (PE): Preeclampsia is a hypertensive condition arising after the 20th week of pregnancy. Symptoms of PE include high blood pressure of 140/90 or greater, proteinuria (protein in the urine), rapid weight gain, persistent headaches, and vision changes, such as flashing lights. Chronic hypertension worsens the condition and leads to damaged organs if left untreated. Pregnant women with obesity and a history of high blood pressure have a higher risk of developing hypertension and preeclampsia during pregnancy.
• Mood and Anxiety Disorders: Symptoms of mood and anxiety disorder in pregnant women include sleep changes, constant worrying, and mood swings. Hormonal changes during pregnancy contribute to emotional fluctuations, and increased stress levels exacerbate the symptoms. Depression and anxiety during pregnancy negatively affect maternal bonding with the fetus and lead to postnatal depression, according to a 2015 study titled “The effects of maternal depression, anxiety, and perceived stress during pregnancy on preterm birth: A systematic review.” Strong social support helps manage stress and improve mental well-being throughout pregnancy and after delivery. Contact your healthcare provider if symptoms become overwhelming.
• Stillbirth: Stillbirth refers to pregnancy losses after 20 weeks. Key factors contributing to stillbirth include fetal abnormalities (chromosome issues), maternal health problems (incompetent cervix, hormonal imbalances, chronic conditions), infections (bacterial), and certain birth defects. Conditions such as preeclampsia and infections increase the risk of stillbirth. Lifestyle factors, such as smoking, substance abuse, and poor nutrition, further contribute to the risk.
• Severe Headache: A severe headache sometimes indicates pregnancy complications like preeclampsia. Preeclampsia is typically preceded by a headache, vision problems like blurring and flashing lights, or fainting spells. About 2/3 of pregnant women with preeclampsia or eclampsia (seizure) noted experiencing severe headaches, according to a 2017 study titled “Headache and pregnancy: a systematic review.”

How Can A Partner Support The Mother At 39 Weeks Pregnant?

A partner can support the mother at 39 weeks pregnant through responsibility sharing, physical task assistance, physical affection, active listening, and good company. Here are 5 ways a partner can support the mother at 39 weeks.

• Responsibility Sharing: Shared involvement strengthens the emotional bond and ensures the mother does not face the journey alone. Attend prenatal visits together to show commitment and support. Moms-to-be and dads-to-be benefit from creating a questions list for the OBGYN, ensuring all concerns are addressed. Join childbirth classes, hire a doula, and get involved in decisions regarding pregnancy and labor.  Educating yourself and learning about pregnancy help prepare the parents for the challenges of childbirth and beyond.
• Physical Task Assistance: Physical tasks become more challenging around week 39 of pregnancy. Provide instrumental support by helping with daily activities and taking on tasks requiring heavy lifting, like carrying groceries or moving furniture. Handle most household chores, including cleaning, cooking, and laundry, to relieve physical strain and give your partner time to rest. Practical support, such as managing housework, eases the burden on the mother’s body as the due date approaches.
• Offer Physical Affection: Hug your partner, rub her back, and give massages to ease discomfort and swelling. Small gestures of intimacy help meet your partner’s physical and emotional needs, making her feel loved and cared for, which reduces stress and anxiety. Stay close and keep her company, as emotional support is important during pregnancy. Physical affection enhances security and promotes well-being, according to a 2006 study titled “Effective social support: Antecedents and consequences of partner support during pregnancy” by Laura Glynn et al., published in Personal Relationships.
• Active Listening and Communication: Focus on the mother’s words, listen without judgment, and help your partner feel understood and valued. Offer reassurance and encouragement to ensure your partner knows you support her. Encourage her to share fears and worries openly and practice constructive communication to address concerns. Creating a safe environment where the partners feel comfortable expressing feelings helps alleviate stress and strengthens the connection between couples.
• Good Company: Spend time with your partner by engaging in activities like music, puzzles, playing, or games to strengthen your bond. Meaningful conversation and open communication help the couple feel more connected, relaxed, and safe during pregnancy. Express worries and connect with other moms to expand the support network, ensuring continuous assistance with delivery and parenting.

What Prenatal Tests Are Needed At 39 Weeks Pregnant?

Prenatal tests needed at 39 weeks pregnant include prenatal visits, blood tests, biophysical profiles, and birth defect screenings.

The prenatal checkup involves various tests to ensure maternal and fetal health. Ultrasound screenings are performed to monitor the baby’s heartbeat and growth. The healthcare provider monitors weight, measures the belly, and checks the cervix to detect unusual symptoms. Other prenatal care screening tests to check maternal health include blood pressure checks and urinalysis to detect complications like hypertension and pre-eclampsia.

Blood tests at 39 weeks prenatal appointment screen for conditions such as anemia and infections, including HIV, hepatitis B, and syphilis. Blood pressure monitoring checks for hypertension and preeclampsia. Rhesus (Rh) factor blood test detects if the mother produces antibodies with the potential to attack the baby’s red blood cells.

A biophysical profile (BPP) combines ultrasound screenings and nonstress tests to assess the baby’s growth and well-being. The provider checks the baby’s breathing, heart rate, movements, amniotic fluid volume, and muscle tone and assigns each a score. The baby’s movement indicates whether there is a sufficient supply of oxygen to the placenta. BPP, often performed in the third trimester, identifies if interventions and additional assessments are needed.

A cell-free DNA (cfDNA) test is a birth defect screening analyzing the baby’s DNA fragments through the mother’s blood. The test detects 99% of trisomy 21 (Down syndrome) cases but is less accurate in detecting trisomy 13 and 18. A cfDNA test is significantly more accurate than other genetic screenings.

When To Call Your Doctor Of Something Feels Wrong At Week 39 Of Pregnancy?

Call your doctor if something feels wrong at 39 weeks pregnant or if you experience symptoms like fever, decreased fetal movement, foul-smelling discharge, severe vomiting, and severe abdominal pain. Here are 6 symptoms you must report to your doctor at 39 weeks of pregnancy.

• Decreased Fetal Movement: Unusual changes in your baby’s movement often signal potential complications, such as fetal growth restriction or stillbirth. Monitor fetal movements closely and call your OBGYN if your baby moves less than usual (fewer than ten kicks or movements in an hour). Decreased fetal movement typically increases risks for cesarean births and indicates fetal distress, requiring immediate intervention.
• Fever Over 100.4°F (38°C): A fever over 100.4°F signals an infection and is associated with fetal risks like neural tube defects, congenital heart defects, and oral clefts, based on a 2014 study, “Systematic Review and Meta-analyses: Fever in Pregnancy and Health Impacts in the Offspring,” conducted by Anne-Marie Nybo Andersen, Gabriele Berg-Beckhoff, and Julie Werenberg Dreier and published in Pediatrics. Monitoring for additional symptoms like chills is crucial, as infections at week 39 pose risks during delivery and increase the likelihood of birth defects.
• Foul-Smelling Vaginal Discharge: Pathological vaginal discharge (PVD) is a yellowish-green, foul-smelling discharge sometimes accompanied by itching, pain, or discomfort. PVD contrasts with normal vaginal discharge, which is typically clear or milky and odorless. Infections such as bacterial vaginosis sometimes lead to PVD. Leaking amniotic fluid with an unpleasant odor commonly indicates chorioamnionitis (infection of the amniotic fluid and membranes) and necessitates prompt medical attention.
• Severe Vomiting or Nausea: Severe vomiting typically indicates hyperemesis gravidarum (HG). HG is characterized by persistent vomiting beyond 20 weeks and is often associated with dehydration, dizziness, significant weight loss, fainting, and complications like electrolyte imbalances or preeclampsia. Additional symptoms include severe headaches and, in extreme cases, loss of consciousness. Phone your OBGYN immediately if you experience severe nausea and vomiting which prevents food and fluid intake.
• Severe Abdominal Pain: Severe abdominal pain indicates serious conditions like uterine complications or acute appendicitis. Contact your OBGYN if you experience intense, frequent cramping in the lower abdomen or sharp, stabbing belly pain. Extreme pain accompanied by bleeding often signals a more severe issue and warrants immediate medical attention.
• Sudden or Extreme Swelling: Sudden, severe swelling is often a symptom of preeclampsia, a hypertensive disorder developing after 20 weeks of gestation. Call your OBGYN immediately if you notice sudden or extreme puffiness and swelling in your hands, feet, or face, especially if accompanied by symptoms like headaches, dizziness, fainting, or vision changes. Severe or persistent swelling typically indicates a more serious issue.

What are the 39 weeks pregnant symptoms not to ignore? 39 weeks pregnant symptoms not to ignore include decreased fetal movement, fever, foul-smelling vaginal discharge, vomiting, severe abdominal crampings, and sudden swelling. Always trust your instincts during pregnancy. If something feels off, reach out to your OB/GYN or healthcare provider, even if you aren’t experiencing any specific symptoms that seem alarming. You are the best judge of how you feel.

Are There Prenatal Vitamins Needed To Be Taken During Week 39 Of Pregnancy?

Yes, essential prenatal vitamins must be taken during week 39 of pregnancy to support maternal and fetal development. Prenatal vitamins and minerals are critical throughout pregnancy, according to the American College of Obstetricians and Gynecologists (ACOG).

Calcium remains crucial at 1,000 milligrams per day. Calcium helps maintain strong bones and teeth for the mother and baby and aids in the final stages of fetal skeletal development.

Iron, at 27 milligrams daily, is essential at 39 weeks. Iron helps deliver oxygen to the mother and baby by supporting red blood cell production. Adequate iron levels are crucial for preventing anemia and ensuring enough oxygen supply for the mother and baby.

Iodine, required at 220 micrograms per day, supports the baby’s brain development, which continues even into late pregnancy. Iodine is necessary for thyroid function, which regulates metabolism in the mother and child.

Folic acid, at 400-600 micrograms per day, is crucial for preventing neural tube defects and supporting the placenta and overall fetal development.

Choline, at 450 milligrams, is essential for brain development and supports fetal memory and learning abilities in the womb.

Vitamin A, recommended at 770 micrograms, helps develop healthy skin, eyesight, and the baby’s immune system. Vitamin A is essential for organ development, including the lungs.

Vitamin C, at 85 milligrams daily, strengthens the immune system and aids in tissue repair and iron absorption.

Vitamin D, at 600 international units (IU), supports the baby’s bone and teeth formation, helping ensure healthy bone development in the final stages of pregnancy.

Vitamin B6, required at 1.9 milligrams, helps metabolize proteins and fats, supports brain development, and ensures the formation of red blood cells.

Vitamin B12, at 2.6 micrograms, facilitates the baby’s nervous system development and red blood cell formation.

Consult with your OBGYN to ensure your supplement regimen meets your needs as you approach labor.

What Does Parenting Styles Suggest About 39 Weeks Pregnant?

Parenting Styles suggests getting a strong support network ready at week 39 of pregnancy.

Having a clear plan for managing your household while you’re focused on recovery is essential. Consider who is going to handle day-to-day tasks in your absence, such as cleaning, laundry, and errands. If you have older children, designate a trusted guardian who cares for them while you’re at the hospital and during the early postpartum period. Another critical aspect to plan for is food—organize who is responsible for meals during the first week or two after your return home. Whether it’s family, friends, or even meal delivery services, ensure that you have this help lined up in advance so you are able to focus on healing and bonding with your newborn.

“Preparing your support system is not just about logistics. It’s about creating an environment that allows you to focus entirely on your baby and your own recovery without worrying about the everyday pressures of running a household,” suggests Pamela Li, the Founder and Editor-in-Chief of Parenting Styles.

Congratulations on being 39 weeks pregnant!