Medical Disclaimer: This article is for informational purposes only and should not replace professional medical advice. Always consult with your healthcare provider about your pregnancy, symptoms, and concerns. If you experience severe pain, heavy bleeding, difficulty breathing, or other emergency symptoms, seek immediate medical attention.

You’ve reached 37 weeks pregnant—officially considered “full term” by medical standards. This milestone means your baby’s organ systems are fully mature and capable of thriving outside the womb. You now have just 3 weeks until your due date, and labor could begin anytime. The focus shifts to active labor preparation, understanding what to expect during labor and delivery, and preparing mentally for the transition from pregnancy to new parenthood. Many women report that 37 weeks feels like a turning point—the anticipation of meeting their baby becomes increasingly real and immediate.

Baby Development at 37 Weeks

Your baby is about the size of a bunch of Swiss chard this week—approximately 19-20 inches long and weighing roughly 6-6.5 pounds. Your baby will gain another 0.5 to 1 pound per week over the next 3 weeks until delivery.

Your baby is now officially full-term, and organ systems are fully mature. Lungs can function independently with adequate surfactant. The digestive system is ready to process breast milk or formula efficiently. The immune system is sophisticated enough to recognize and fight common pathogens. Liver and kidneys are functioning at near-adult levels.

At 37 weeks, your baby is typically in a stable head-down position and somewhat “locked” in the pelvis. The amniotic fluid is beginning to decrease slightly. Most babies at this stage don’t move as dramatically as earlier, though movements should still be regular and frequent.

Your baby’s digestive tract has developed meconium (the baby’s first poop), which is dark greenish-black and typically passed in the first 24 hours after birth. Your baby’s reflexes—sucking, rooting, startle, and grasp—are all fully developed and ready for life outside the womb.

Your Body This Week

At 37 weeks, you’ve likely gained 25-32 pounds. Many women experience slight weight loss (1-2 pounds) in the final weeks as their body sheds excess fluid. Your uterus is now about 6-7 inches above your belly button. Physical discomfort has likely reached its peak.

Your cervix is likely beginning to change. You may have increased vaginal discharge as your cervix softens, shortens, and potentially dilates. Some women are dilated 2-3 cm for weeks before labor, while others don’t change until labor begins. Both are completely normal.

Your body is producing increasing amounts of oxytocin and prostaglandins—hormones that prepare your body for labor. You may notice increased Braxton-Hicks contractions, particularly in the evening. Emotionally, many women report a shift at 37 weeks. The pregnancy suddenly feels “done” and the anticipation becomes overwhelming.

Common Symptoms at 37 Weeks

Extreme Discomfort and Impatience: Most women are ready for pregnancy to be over. The physical discomfort is significant, sleep is nearly impossible, and anticipation about labor is high. Remind yourself that labor will begin when your body is ready.

Changes in Appetite: Some women experience decreased appetite in the final weeks, while others report unchanged or increased appetite. All variations are normal.

Nesting Instinct Intensifying: You may feel an irresistible urge to organize, clean, and prepare. Channel this energy productively but don’t exhaust yourself.

Decreased Fetal Movement (Though Still Present): Your baby’s movements will be rolling and shifting rather than dramatic kicking. You should still feel 10 movements within a 2-hour period. If movement significantly decreases, contact your healthcare provider.

Increased Vaginal Discharge: Increased discharge is normal as your cervix changes. If you notice a thicker, blood-tinged discharge (the mucus plug), this indicates cervical change. If discharge is foul-smelling or concerning, contact your provider.

Lower Back and Pelvic Pain: As your baby settles deeper into your pelvis and your cervix changes, pain typically increases. Warm baths, massage, and supportive positioning can help.

What to Do This Week

Understand the Stages of Labor: Early labor involves contractions becoming regular. Active labor is when contractions are closer together, more intense, and your cervix dilates more rapidly. The transition phase is typically the most intense but shortest phase. Understanding what to expect reduces fear and anxiety.

Discuss Pain Management One Final Time: Make sure you understand all your options and your healthcare provider understands your preferences—whether unmedicated birth, epidural, nitrous oxide, or planned cesarean.

Prepare Your Support Person: Make sure they understand your preferences, what they can do to support you, and what comfort measures you find most helpful.

Mentally Prepare for Labor: Spend time visualizing labor going smoothly. Practice relaxation techniques, breathing exercises, and affirmations. Reading positive birth stories can help normalize the experience.

Confirm Postpartum Support: Review the postpartum recovery plan. Make sure you have support arranged for the first weeks. Prepare postpartum meals if you haven’t already.

Continue Weekly Appointments: Attend consistently. These are crucial for identifying any complications as labor approaches.

Nutrition Spotlight: Final Preparations for Labor

Entering labor well-nourished and well-hydrated gives you the best chance of having energy and stamina. Ensure you’re consuming adequate calories—about 300 additional per day in the third trimester. Continue adequate protein (70-100g daily) for muscle function and recovery. Stay well-hydrated throughout the day.

Have some easily digestible foods available for early labor—like honey, juice, crackers, or broth—to maintain energy during the lengthy early phase. Continue taking your prenatal vitamin as directed.

When to Call Your Doctor

Contact your healthcare provider immediately if you experience:

  • Regular, increasingly intense and close contractions—you may be in active labor
  • Gushing or steady leaking of clear fluid from your vagina
  • Vaginal bleeding more than light spotting
  • Sudden severe swelling of face or hands with headache or vision changes
  • Severe headache or vision disturbances
  • Severe abdominal or pelvic pain that doesn’t improve with rest
  • Significant decrease in fetal movement
  • Fever above 100.4°F (38°C)
  • Difficulty breathing or chest pain

Frequently Asked Questions at 37 Weeks

What are the stages of labor, and how long does each last?

Labor has three stages. The first stage involves cervical dilation from 0-10 cm and can last many hours for first-time mothers. The second stage is pushing and delivery, typically lasting 30 minutes to 2 hours. The third stage is delivery of the placenta, lasting 5-30 minutes. The entire process can take anywhere from a few hours to 24+ hours for first-time mothers, and is typically shorter for subsequent deliveries.

What is an episiotomy, and will I need one?

An episiotomy is a surgical cut to enlarge the vaginal opening. Current evidence suggests routine episiotomy doesn’t prevent severe tearing and may increase complications. Most providers now use episiotomy only when specifically indicated (such as for fetal distress). Discuss concerns about perineal tearing with your provider.

What happens if I need an emergency cesarean?

If circumstances indicate vaginal delivery isn’t safe for you or your baby, your provider may recommend emergency cesarean through a surgical abdominal incision. Emergency cesareans move quickly, with your baby typically delivered within 15-30 minutes. Skin-to-skin contact and delayed cord clamping remain priorities when possible.

What are delayed cord clamping and cord blood banking?

Delayed cord clamping means waiting 30-60 seconds after delivery before clamping, allowing your baby to receive additional blood from the placenta. This benefits iron stores and blood volume. Cord blood banking stores cord blood for potential future medical use. Discuss these options with your healthcare provider to make an informed decision.