Pregnancy Due Date Calculator
Calculate your estimated due date, current pregnancy week and trimester from your last period date.
How to Use This Pregnancy Due Date Calculator
- 1Enter the first day of your last menstrual period
- 2Click Calculate
- 3View your estimated due date and current week
Formula
Due Date = Last Menstrual Period + 280 days (Naegele's Rule)
Frequently Asked Questions
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About Pregnancy Due Date Calculator
Use Naegele's rule to estimate your baby's due date based on the first day of your last menstrual period. Track your pregnancy progress with week and trimester info.