Pregnancy Due Date Calculator
Calculate your pregnancy due date with Naegele's rule — current week, trimester, and days remaining from LMP or conception
About the Calculation
- • LMP Method: Naegele's rule — adds 280 days (40 weeks) to the first day of your last menstrual period
- • Conception Method: Adds 266 days (38 weeks) to the estimated conception date
- • Only 5% of babies are born on their exact due date — most arrive within 2 weeks before or after
- • This is an estimate. Consult your healthcare provider for accurate dating via ultrasound
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