Week 39 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.

    Week 38Week 40

    Baby is

    about the size of a small watermelon or pumpkin

    19-20 inches · 7-7.5 lbs

    Baby this week

    • Lungs are fully mature and ready for first breath
    • Brain continues rapid development and can regulate body temperature
    • Baby is in optimal head-down position for delivery
    • All major organs are fully developed and functional

    You this week

    • Increased pelvic pressure and heaviness
    • More frequent Braxton-Hicks contractions that may feel stronger
    • Difficulty sleeping despite exhaustion
    • Possible lightening (baby drops lower) which may ease breathing but increase bladder pressure
    • Increased vaginal discharge
    • General restlessness and nesting urges

    This week's tips

    • Time your contractions if you're experiencing them regularly—knowing the pattern helps you recognize true labor
    • Rest when you can, even if sleep feels elusive; short naps and quiet time matter
    • Keep your hospital bag packed and easily accessible by the door
    • Stay mobile with walks or gentle movement to encourage labor and ease discomfort
    • Eat light, nourishing meals and stay hydrated—you may not feel like eating much, but your body needs fuel
    • Try a birthing ball, warm baths, or position changes for comfort

    Informational only — always check with your doctor or midwife for advice specific to you and your baby.

    Looking ahead

    You're in the final stretch. Labor could begin anytime now, and your body is preparing in ways both obvious and subtle. Whether you deliver this week or need to go a bit longer, you're nearly there.

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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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