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 pumpkin or watermelon
19-21 inches · 7-8 lbs (average)
Baby this week
- •Baby is fully developed and ready for birth anytime
- •Lungs are mature and ready to take first breaths
- •Baby may be in head-down position, engaged in pelvis
- •All major organs are functioning
- •Baby can regulate their own body temperature
You this week
- •Persistent lower back pain and pelvic pressure
- •Increased Braxton-Hicks contractions (may feel more intense)
- •Cervical mucus changes and possible bloody show
- •Extreme fatigue mixed with restlessness and anxiety
- •Frequent urination and possible bowel changes
- •Swelling in feet and ankles
- •Difficulty sleeping despite exhaustion
- •Emotional intensity as labor approaches
This week's tips
- •Rest when you can, but also try gentle movement like walking to encourage labor progress
- •Time contractions and know when to contact your healthcare provider (typically when they're 5-1-1: five minutes apart, lasting one minute, for one hour)
- •Keep your hospital bag or birth center bag packed and ready by the door
- •Eat nutritious, easily digestible meals—labor is demanding work
- •Try comfort measures: warm baths, position changes, breathing techniques, or massage
- •Stay hydrated and keep your support person close
- •Trust your body—you're almost there
- •Practice relaxation techniques to manage anxiety about labor
Informational only — always check with your doctor or midwife for advice specific to you and your baby.
Looking ahead
You're at term! Labor could begin anytime now. Some pregnancies go past 40 weeks, and that's okay—your healthcare provider will monitor you both closely. Focus on staying calm, rested, and ready for your baby's arrival.
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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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