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.

23 Weeks Pregnant

Q: What trimester is week 23 of pregnancy?

Week 23 falls in the Second 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 23 weeks pregnant?

At 23 weeks pregnant, there are approximately 17 weeks 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.

Second Trimester — ≈17 weeks to go

Week 23 Week 40 (due date)

Week 23 falls in the Second Trimester — ≈17 weeks 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 23 Weeks

Around week 23, the lungs are developing rapidly, producing surfactant — a substance that will eventually help the air sacs inflate after birth. The baby may begin to respond to sounds from outside the womb. The fetus is approximately the size of a large mango. Skin is becoming less wrinkled as fat accumulates beneath it.

Size Comparison

Approximate size — week 23

Large mango (~20 cm)

Common Experiences at 23 Weeks

Around week 23, many people are clearly in the second trimester and may be feeling the baby move quite actively. Some people experience Braxton Hicks contractions (irregular, painless tightening) for the first time around this stage. These are generally considered a normal part of how the uterus prepares for labor.

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

General Planning Checklist — Week 23

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

Continue routine prenatal appointments
Discuss Braxton Hicks contractions with your provider if you notice them
Begin exploring newborn care preparation if interested
Attend any scheduled appointments or tests as directed

Nearby Weeks

21 Weeks Pregnant · 22 Weeks Pregnant · 24 Weeks Pregnant · 25 Weeks Pregnant

Frequently Asked Questions

What trimester is week 23 of pregnancy?

Week 23 is in the Second Trimester — ≈17 weeks 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 23 weeks pregnant?

Based on a standard 40-week pregnancy, week 23 means approximately Second Trimester — ≈17 weeks 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.