Third Trimester · Week 40 of 40
40 Weeks Pregnant
👶
Size of a small pumpkin
51.2 cm
Length
3462g
Weight
3
Trimester
Milestone: Due date!
Week 1Week 40 (100%)Week 40
Medical Information
The information on this page is for educational and informational purposes only. It is not medical advice and should not be used to diagnose or treat any medical condition. Always consult your healthcare provider (doctor, midwife, or nurse) before making any decisions about your pregnancy or your baby's health.
Baby Development at 40 Weeks
- Baby is fully developed and ready to be born!
- Average weight: 7–8 lbs, length: ~20 inches
- Skull bones remain soft for birth canal passage
Symptoms at 40 Weeks Pregnant
- Due date — but only 5% of babies arrive exactly on their due date
- Regular contractions are the main sign of true labor
- Possible rupture of membranes (water breaking)
Tips for Week 40
- 1.If you haven't gone into labor, discuss induction options with your OB
- 2.Call your OB immediately if: water breaks, heavy bleeding, baby stops moving
- 3.Trust your body — you've got this!
Week 40 Checklist
- Post-due-date: discuss induction plan with OB if no labor by 41 weeks