Calculate your estimated due date using your last menstrual period (LMP), conception date, or IVF transfer date. Track your pregnancy progress and upcoming milestones.
When did your last menstrual period start?
Estimated Due Date
May 2, 2027
224 days to go
8 weeks, 0 days
Trimester 1
20% complete
1st Trimester
Weeks 0-13
2nd Trimester
Weeks 14-27
3rd Trimester
Weeks 28-40
Week 8: Raspberry
Conception Date
August 9, 2026
First Day of Last Period
July 26, 2026
Heartbeat detectable
Week 6 • Sep 6
End of first trimester
Week 12 • Oct 18
Anatomy scan (18-20 weeks)
Week 18 • Nov 29
Viability milestone
Week 24 • Jan 10
Third trimester begins
Week 27 • Jan 31
Full term
Week 37 • Apr 11
Due date
Week 40 • May 2
This calculator estimates your due date based on a standard 40-week (280-day) pregnancy. The calculation uses Naegele's rule, which assumes a 28-day menstrual cycle and ovulation on day 14.
This is an estimate only. Only about 5% of babies are born on their exact due date. Most are born within 2 weeks before or after. Always consult with your healthcare provider for accurate dating.