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.
Baby is
about the size of a small watermelon
19.5 inches · 7.25 lbs
Baby this week
- •Baby is considered full-term and ready for delivery
- •Lungs are fully mature and ready to breathe air
- •Brain continues rapid development even this late in pregnancy
- •Baby's position is likely head-down, engaged in the pelvis
- •Immune system is equipped with antibodies from mom
You this week
- •Increased Braxton-Hicks contractions (may feel more intense)
- •Pelvic pressure and heaviness as baby drops lower
- •Increased vaginal discharge or possible bloody show
- •Lower back pain and general discomfort
- •Difficulty sleeping despite exhaustion
- •Nesting urges intensifying
- •Emotional fluctuations—excitement mixed with anxiety
This week's tips
- •Time your contractions and know when to call your healthcare provider—most suggest calling when contractions are 5 minutes apart for an hour
- •Stay mobile but rest when you can; walking can help with labor progression, but your body needs reserves too
- •Have your hospital bag or birth center items easily accessible and charged
- •Practice your birth plan and comfort measures one more time with your partner or support person
- •Keep eating regular, nourishing meals—labor requires energy
- •Stay hydrated throughout the day
Informational only — always check with your doctor or midwife for advice specific to you and your baby.
Looking ahead
You're in the home stretch. While most babies arrive between weeks 39-40, some come earlier and others later—all are considered full-term now. Focus on staying calm and trusting your body's signals. Labor can start anytime.
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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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