Third trimesterWeek 39 of 40
Your baby at 39 weeks pregnant
Your baby is the size of a watermelon — about 20.0 in long and weighing approximately 7.3 lb.
🍉
Watermelon
The size of a watermelon
Length (crown to heel)
20.0 in
Approximate weight
7.3 lb
Baby's hand
57mm
Baby's foot
62mm
Pregnancy progress97%
🌱 Baby's development at 39 weeks
Your baby's brain is still growing rapidly — it will continue to do so for years after birth.
🤰 Your body at 39 weeks
Any day now. Make sure your bag is packed, your birth plan is ready, and you have support around you. You are completely ready for this.
✨ Did you know?
The average first-time labour lasts 8-18 hours. Second and subsequent labours are typically much faster — every birth is unique.
📅
Track your pregnancy week by week
Save your due date, log your weight with personalized guidance, and build a bump journal — free, built by a registered midwife.
Join free →Want to explore interactively? Try the baby size slider tool →