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
19-20 inches · 7-9 lbs
Baby this week
- •Fully developed and ready for birth
- •Lungs are mature and ready to breathe air
- •Baby is in optimal position (head down) for most deliveries
- •All major organ systems are functioning
You this week
- •Strong, regular contractions or false labor (Braxton-Hicks)
- •Intense pressure and heaviness in pelvis
- •Lower back pain and pelvic aching
- •Increased vaginal discharge or bloody show
- •Difficulty sleeping despite exhaustion
- •Emotional intensity—anxiety, excitement, or impatience
This week's tips
- •Stay mobile if comfortable—walking can encourage labor progression
- •Rest when you can; labor is physically demanding
- •Time contractions if they feel regular; know when to contact your provider
- •Keep your hospital bag packed and in an accessible location
- •Eat light, hydrating foods if you feel up to it
- •Practice your birth plan and pain management techniques one more time
- •Arrange childcare or support for other children before labor begins
Informational only — always check with your doctor or midwife for advice specific to you and your baby.
Looking ahead
You may go into labor anytime now, or you might go past your due date—both are normal. If labor doesn't start on its own, your provider will discuss next steps with you around 41-42 weeks.
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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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