Week 40 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
20 inches · 7.5-8.5 lbs
Baby this week
- •Baby is considered full-term and ready to arrive
- •Lungs are fully mature and ready to breathe air
- •Baby's head may be engaged deeper in the pelvis
- •Most of baby's growth is complete; any additional weight gain is minimal
You this week
- •Intense pelvic pressure and heaviness
- •Frequent Braxton Hicks contractions
- •Difficulty sleeping despite exhaustion
- •Increased vaginal discharge or bloody show
- •Restlessness and strong nesting urges
- •Possible lower back pain or sciatic nerve discomfort
This week's tips
- •Stay mobile—walking, gentle movement, and position changes can help encourage labor and ease discomfort
- •Rest when you can, but don't stress if sleep feels impossible; your body is preparing for the work ahead
- •Review your birth plan and labor coping strategies with your partner or support person
- •Keep your hospital bag packed and in an easily accessible location
- •Eat nutritious, easy-to-digest foods and stay hydrated; you'll need energy soon
- •Have your healthcare provider's number easily accessible and know when to call
Informational only — always check with your doctor or midwife for advice specific to you and your baby.
Looking ahead
Labor could begin any day now. Some pregnancies go past 40 weeks, and that's okay—your provider will monitor you and discuss next steps. Trust your body and reach out to your care team if you have concerns.
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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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