Pregnancy
Due Date Calculator
Calculate your estimated due date based on the first day of your last menstrual period (LMP). Shows week-by-week milestones and trimester dates.
Naegele's rule
Offline
Last menstrual period (LMP)
Based on Naegele's rule: LMP + 280 days (40 weeks). Adjusted for non-28-day cycles.
Results
Key milestones
| Week | Date | Milestone |
|---|