Health
Pregnancy Calculator: Due Date
Calculate due date and milestones.
Track pregnancy from conception to birth.
Due Date
LMP + 280 days (40 weeks).
Trimesters
- First: 1-12 weeks
- Second: 13-26
- Third: 27-40
Milestones
Heartbeat: 6wk. Movement: 16-20wk. Full term: 39wk.
Frequently Asked Questions
Due date calculation?
LMP + 280 days.
Full term?
39-41 weeks. <37 preterm.
Due date accuracy?
Only ~5% deliver on exact date. ±2 weeks normal.