Week 31 of Pregnancy
Third trimester
For informational purposes only. This page is not medical advice. Every pregnancy is different — always consult your doctor, midwife, or healthcare provider for guidance specific to your situation. In an emergency, call your provider or 911 immediately.
Baby is
about the size of a coconut
16.2 inches · 3.3 lbs
Baby this week
- •Brain development accelerating rapidly with increased neural connections
- •Eyes can perceive light and darkness; pupils can dilate and constrict
- •Lungs continuing to mature and produce surfactant (crucial for breathing after birth)
- •Baby's position settling lower in your pelvis as they prepare for delivery
You this week
- •Increased back and pelvic pain from weight and shifting center of gravity
- •Swelling in feet, ankles, and hands (edema) becoming more noticeable
- •Shortness of breath as baby takes up more space
- •Sleep disruptions from discomfort and frequent bathroom trips
- •Braxton Hicks contractions becoming more frequent and intense
- •Fatigue despite needing rest due to physical demands
This week's tips
- •Practice pelvic floor exercises (Kegels) to strengthen muscles for labor and recovery
- •Wear supportive, flat shoes and consider maternity compression socks to help with swelling
- •Sleep on your left side to improve circulation and kidney function
- •Attend childbirth education classes now to feel more prepared and confident
- •Start discussing your birth preferences and pain management options with your healthcare provider
- •Stay hydrated—it helps reduce swelling and supports baby's growth
Informational only — always check with your doctor or midwife for advice specific to you and your baby.
Looking ahead
You're entering the home stretch! Over the next 9 weeks, your baby will nearly double in weight as their body prepares for life outside the womb. This is an important time to focus on rest, preparation, and connecting with your healthcare team about your birth plan.
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For informational purposes only. This page is not medical advice. Every pregnancy is different — always consult your doctor, midwife, or healthcare provider for guidance specific to your situation. In an emergency, call your provider or 911 immediately.
This content is for informational purposes only and is not medical advice. Every pregnancy and baby is different. Always consult your doctor, midwife, or pediatrician for guidance specific to your situation.
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