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
April 3, 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
July 11, 2026
First Day of Last Period
June 27, 2026
Heartbeat detectable
Week 6 • Aug 8
End of first trimester
Week 12 • Sep 19
Anatomy scan (18-20 weeks)
Week 18 • Oct 31
Viability milestone
Week 24 • Dec 12
Third trimester begins
Week 27 • Jan 2
Full term
Week 37 • Mar 13
Due date
Week 40 • Apr 3
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.