Baby Due Date Calculator
Find out when your baby will arrive. Calculate due date from last period or conception date.
Understanding Due Date Calculation
Due date = LMP + 40 weeks (280 days) adjusted for cycle length
Trimesters
- 1st Trimester: Weeks 1-12 (organ development)
- 2nd Trimester: Weeks 13-27 (movement, growth)
- 3rd Trimester: Weeks 28-40 (final development)
Frequently Asked Questions
When will my baby be born?
Full term is 37-42 weeks. Your due date is the 40-week mark from LMP.
Can my due date change?
Yes, early ultrasounds may adjust the date based on baby's size.