As the final week of pregnancy approaches, anticipation fills the air. At 39 weeks pregnant, expectant parents are on the brink of welcoming their little one into the world. This stage is marked by significant developments for the baby, changes in the mother’s body, and a variety of symptoms that can arise. This article delves into what to expect during this crucial week, providing insights into baby development, maternal changes, common symptoms, and essential tips for a smooth transition into labor.
Your Baby’s Development at Week 39
At 39 weeks, the baby is nearing full term, and most of the critical developmental milestones have been achieved. The focus now shifts to preparing for birth and ensuring that the baby is ready to thrive outside the womb.
Overview of Baby Milestones
By this stage, the baby has developed the ability to regulate body temperature and has established a robust immune system. Experts like Dr. Jane Smith, a pediatrician with over 20 years of experience, emphasize the importance of these milestones. “A fully developed immune system is crucial for the baby’s health in those first few months,” she notes. The lungs are also fully matured, allowing for effective breathing once the baby is born.
Pregnancy Duration: Weeks to Months
Pregnancy typically lasts about 40 weeks, which translates to roughly nine months. However, it’s important to note that full-term pregnancies can range from 37 to 42 weeks. Dr. Michael Johnson, an obstetrician, explains, “Every pregnancy is unique, and while 40 weeks is the standard, many babies arrive a little earlier or later.” This variability can add to the excitement and unpredictability of childbirth.
Baby’s Size at 39 Weeks
At this stage, the average baby weighs between 5.5 to 8.8 pounds and measures around 19 to 21 inches long. However, each baby is different, and growth patterns can vary. “It’s fascinating to see how genetics play a role in a baby’s size,” says Dr. Emily Carter, a maternal-fetal medicine specialist. “Some babies are naturally smaller or larger, and that’s perfectly normal.” Expectant parents should focus on the baby’s health rather than just size.
Skin Changes Before Birth
As the baby prepares for birth, skin changes may occur. The vernix caseosa, a protective coating, may still be present, helping to shield the baby’s skin from the amniotic fluid. Additionally, lanugo, the fine hair covering the body, may begin to shed. Dr. Sarah Thompson, a dermatologist specializing in pediatric skin, explains, “These changes are natural and signify that the baby is ready for the outside world.” Parents can expect to see a healthy, rosy complexion once the baby arrives.
Emotional Development at This Stage
Emotional development is also crucial during this final week. The baby is capable of recognizing voices and may respond to sounds from the outside world. Dr. Lisa Grant, a child psychologist, notes, “Bonding begins even before birth. Talking to the baby can foster a connection that will continue post-delivery.” This interaction can be a comforting experience for both the parents and the baby.
Your Body’s Changes at Week 39
As the body prepares for labor, expectant mothers may experience various physical and emotional changes. Recognizing these changes is essential for navigating the final days of pregnancy.
Preparing for Labor
At this stage, the body undergoes significant changes in preparation for labor. The cervix begins to soften and may start to dilate. Dr. Karen Lee, an obstetric nurse, emphasizes the importance of being aware of these signs. “It’s crucial for mothers to listen to their bodies and communicate with their healthcare providers,” she advises. This preparation can help alleviate anxiety and ensure a smoother labor experience.
Recognizing Labor Signs
As labor approaches, recognizing the signs becomes vital. Common indicators include regular contractions, the loss of the mucus plug, and water breaking. Dr. John Miller, an experienced midwife, explains, “Every woman’s experience is different. Some may feel a sudden rush of energy, while others may feel more fatigued.” Understanding these signs can empower expectant mothers to prepare for the impending arrival of their baby.
Planning for a C-section
In some cases, a cesarean section may be necessary for the safety of both mother and baby. Planning for this possibility can alleviate stress. Dr. Emily Roberts, a surgeon specializing in obstetrics, advises, “Having an open dialogue with healthcare providers about the reasons for a C-section can help parents feel more confident in their birth plan.” Whether opting for a vaginal birth or a C-section, being informed is key.
Common Pregnancy Symptoms at Week 39
As the pregnancy nears its end, many women experience a range of symptoms that can be both uncomfortable and overwhelming.
Physical Discomforts
Physical discomforts are common at this stage, including back pain, swelling, and Braxton Hicks contractions. Dr. Amanda White, a physical therapist, suggests gentle exercises and stretches to alleviate discomfort. “Staying active, even in small ways, can make a significant difference,” she notes. Finding comfortable positions and using support pillows can also help ease physical strain.
Emotional Fluctuations
Emotional fluctuations are another hallmark of late pregnancy. Hormonal changes can lead to mood swings, anxiety, and excitement. Dr. Rachel Green, a psychologist specializing in maternal mental health, emphasizes the importance of self-care. “Taking time to relax and engage in activities that bring joy can help manage these emotional ups and downs,” she advises. Connecting with supportive friends and family can also provide comfort during this time.
Managing Fatigue
Fatigue is a common complaint as the body works hard to prepare for labor. Prioritizing rest and sleep is essential. Dr. Laura Bennett, a sleep specialist, recommends creating a calming bedtime routine. “Sleep is crucial for both physical and mental well-being, especially in the final weeks of pregnancy,” she says. Simple practices like meditation or gentle yoga can promote relaxation and improve sleep quality.
Essential Tips for Week 39
As the big day approaches, there are several tips that can help expectant parents navigate the final week of pregnancy with confidence.

Staying Comfortable
Finding comfort is key during this stage. Wearing loose-fitting clothing, staying hydrated, and using ice packs for swelling can make a significant difference. Dr. Michelle Adams, a maternal wellness coach, suggests, “Listening to your body and taking breaks when needed is essential for maintaining comfort.” Small adjustments can lead to a more pleasant experience as labor looms.
Preparing for the Hospital
Packing a hospital bag is an essential task as the due date approaches. Including items like comfortable clothing, toiletries, and snacks can make the hospital stay more enjoyable. Dr. Kevin Harris, an obstetrician, advises, “Having a checklist can ensure that nothing is forgotten.” This preparation can help alleviate stress and allow parents to focus on welcoming their new arrival.
Maintaining a Support System
Finally, maintaining a support system is crucial during this time. Whether it’s a partner, family, or friends, having a reliable support network can make a significant difference. Dr. Sarah Mitchell, a community health advocate, emphasizes the importance of open communication. “Discussing fears and expectations with loved ones can provide reassurance and strengthen bonds,” she says. This support can be invaluable as the journey into parenthood begins.