General information only — not medical advice. This page provides general, well-established information about pregnancy development and is intended for informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult your qualified healthcare provider with any questions about your pregnancy.

39 Weeks Pregnant

Q: What trimester is week 39 of pregnancy?

Week 39 falls in the Third Trimester. The first trimester covers weeks 1–13, the second trimester covers weeks 14–27, and the third trimester covers weeks 28 through delivery. This is a general informational guide — consult your healthcare provider for personalized guidance about your pregnancy.

Q: How many weeks are left at 39 weeks pregnant?

At 39 weeks pregnant, there are approximately 1 week remaining until the estimated due date (based on a standard 40-week pregnancy). Individual pregnancies vary — due dates are estimates, and normal delivery typically occurs between weeks 37 and 42. Always consult your healthcare provider for information specific to your pregnancy.

Third Trimester — ≈1 week to go

Week 39 Week 40 (due date)

Week 39 falls in the Third Trimester — ≈1 week to go. A standard pregnancy is counted as 40 weeks from the last menstrual period. Individual pregnancies vary — due dates are estimates, and normal delivery typically occurs between weeks 37 and 42.

Development at 39 Weeks

At week 39, the pregnancy is full term. Antibody transfer from mother to baby is typically at or near its peak, helping build the newborn's early immune system. The fetus is approximately the size of a mini watermelon. The baby could arrive any time now or may continue for a few more weeks — both are within the normal range.

Size Comparison

Approximate size — week 39

Mini watermelon (~50 cm)

Common Experiences at 39 Weeks

Week 39 is full term and many people feel ready for birth while also experiencing significant physical discomfort. Sleep is difficult for most. Many people experience increased Braxton Hicks contractions. Signs of early labor may be noticeable for some. Maintaining regular communication with a healthcare provider is important now.

Experiences vary widely between individuals. If you have concerns about any symptom, contact your healthcare provider.

General Planning Checklist — Week 39

These are general planning suggestions only — not medical instructions. Follow your healthcare provider's specific guidance for your pregnancy.

Attend prenatal appointments as scheduled
Know exactly when and how to contact your provider or go to your birth location
Rest, stay hydrated, and stay in contact with your support network
Review labor signs with your provider

Nearby Weeks

37 Weeks Pregnant · 38 Weeks Pregnant · 40 Weeks Pregnant · 41 Weeks Pregnant

Frequently Asked Questions

What trimester is week 39 of pregnancy?

Week 39 is in the Third Trimester — ≈1 week to go. The first trimester covers weeks 1–13, the second trimester covers weeks 14–27, and the third trimester covers weeks 28 through delivery. This is general information — your healthcare provider can give you guidance specific to your pregnancy.

How many weeks are left at 39 weeks pregnant?

Based on a standard 40-week pregnancy, week 39 means approximately Third Trimester — ≈1 week to go with time remaining as noted above. Keep in mind that due dates are estimates — normal delivery typically occurs between weeks 37 and 42. Always follow your healthcare provider's guidance about your specific pregnancy.

Not medical advice. The information on this page is for general informational purposes only. Pregnancy experiences vary significantly between individuals. Nothing on this page should be used as a basis for medical decisions. Always consult a qualified healthcare provider for advice about your specific pregnancy, symptoms, or health concerns. In an emergency, contact emergency services immediately.