36 Weeks Pregnant: Baby Development, Symptoms & Signs | Week by Week

July 9, 2025 / Flourish Community Care

At 36 weeks pregnant, the anticipation of welcoming a new life is palpable. As the due date approaches, both the baby and the mother experience significant changes. This article delves into the baby’s development, the physical changes mothers may experience, common symptoms, and essential tips for this crucial week.

Your Baby’s Development at Week 36

Overview of Baby’s Growth

By week 36, the baby is nearing full term, which is defined as 37 weeks. At this stage, the baby is developing rapidly and preparing for life outside the womb. The majority of the organs are fully formed, and the focus is now on gaining weight and maturing systems.

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Experts like Dr. Jennifer Ashton, a prominent OB-GYN, emphasize that this week marks a critical period for fetal development. The baby is honing its reflexes and practicing essential movements such as sucking and breathing, which will be vital after birth.

Pregnancy Month Calculation

Pregnancy is typically divided into three trimesters, with each trimester lasting about three months. At 36 weeks, the mother is in the third trimester and nearing the end of her pregnancy journey. This week falls in the ninth month, which is an exciting yet challenging time for many expectant mothers.

As Dr. Michael Apkon notes, understanding the timeline of pregnancy can help parents prepare mentally and physically for the arrival of their baby. Each week brings new developments, and tracking these changes can provide reassurance and clarity during this transformative period.

Baby’s Size and Weight

At this stage, the average baby weighs around 5.5 to 6 pounds and measures approximately 18 to 19 inches in length. However, it is important to remember that each baby is unique, and variations in size are normal. Dr. Laura Riley, a maternal-fetal medicine specialist, points out that genetics and nutrition play crucial roles in determining the baby’s size.

The baby is likely to gain about half a pound each week leading up to delivery, contributing to that adorable baby chub that many parents look forward to. This weight gain is essential for the baby’s energy reserves after birth.

Fetal Skull and Bone Formation

During this week, the fetal skull is still soft and pliable, allowing it to pass through the birth canal more easily. The bones of the skull are not fully fused, which is a natural design that helps accommodate the birthing process. Experts like Dr. David Hackney highlight that this feature is crucial for a safer delivery.

As the baby continues to grow, the bones in the body are also strengthening. By the time of birth, the baby’s bones will be hard enough to support its weight, although they will still be softer than adult bones.

Digestive System Maturity

The digestive system is becoming fully functional, preparing the baby to digest milk after birth. This week, the baby’s intestines are filled with a substance called meconium, which is the first stool that the baby will pass after birth. Dr. Jennifer Gunter, a well-known obstetrician, emphasizes the importance of this process as it indicates that the baby’s digestive system is maturing.

As the baby prepares for life outside the womb, the development of the digestive system is a key milestone that signifies readiness for feeding and nutrition.

Changes in Your Body at Week 36

Changes in Gait: Walk or Waddle

Experts suggest that maintaining good posture and engaging in gentle exercises can help alleviate discomfort associated with this change. Dr. Sarah Buckley, a family physician, notes that staying active, when possible, can enhance mobility and comfort in the final weeks of pregnancy.

Pelvic Pain

Pelvic pain is a common complaint during the later stages of pregnancy. As the baby drops lower into the pelvis in preparation for birth, pressure on the pelvic region can increase significantly. This discomfort is often exacerbated by the hormonal changes that soften the ligaments and joints in the body.

Dr. Sherry Ross, a women’s health expert, advises women to listen to their bodies and seek relief through supportive measures such as pelvic support belts or prenatal yoga, which can help ease tension and discomfort.

The Process of Baby Dropping

Baby dropping, or lightening, occurs when the baby settles deeper into the pelvis. This process can happen a few weeks before labor begins, and it often brings some relief from heartburn and increased pressure on the diaphragm. However, it can also intensify pelvic discomfort.

Understanding this process can help expectant mothers prepare for the imminent arrival of their baby. Dr. Amy Tuteur explains that while baby dropping can be a sign of labor approaching, it does not necessarily mean that labor will start immediately.

Common Pregnancy Symptoms at Week 36

Physical Discomforts to Expect

As the body prepares for childbirth, physical discomforts can become more pronounced. Common symptoms include back pain, swelling in the feet and ankles, and Braxton Hicks contractions. These practice contractions can help the body get ready for labor, but they can also be uncomfortable.

Dr. Christine Northrup, a well-respected author and women’s health advocate, emphasizes the importance of self-care during this time. Simple activities like soaking in a warm bath or using a pregnancy pillow can help alleviate some of these discomforts.

Emotional Changes and Mood Swings

Emotional fluctuations are common during this stage of pregnancy. Hormonal changes, coupled with the stress of impending parenthood, can lead to mood swings and heightened emotions. It is essential for partners to provide support and understanding during this time.

Experts like Dr. Laura Berman highlight the significance of open communication between partners. Discussing feelings and concerns can foster a supportive environment, helping to navigate the emotional ups and downs of pregnancy.

Essential Tips for Week 36

Self-Care Strategies

Prioritizing self-care is crucial in the final weeks of pregnancy. Simple practices like staying hydrated, eating nutritious foods, and engaging in light exercise can make a significant difference in overall well-being. Additionally, taking time to relax and unwind can help reduce stress levels.

Dr. Elizabeth Stein recommends incorporating mindfulness techniques such as meditation or gentle stretching to promote relaxation and emotional balance. These strategies can help expectant mothers feel more grounded and prepared for the journey ahead.

Preparing for Labor and Delivery

As the due date approaches, it is essential to prepare for labor and delivery. This includes packing a hospital bag, discussing birth plans with healthcare providers, and ensuring that transportation to the hospital is arranged. Understanding the signs of labor can also empower expectant mothers.

Dr. Harvey Karp, a pediatrician and child development expert, emphasizes the importance of education in this phase. Attending childbirth classes or reading up on labor techniques can provide valuable insights and boost confidence for the upcoming experience.

In summary, week 36 of pregnancy is a time of significant change and preparation. By understanding the developmental milestones of the baby and the physical and emotional changes that occur, expectant mothers can navigate this exciting yet challenging time with greater ease and confidence.