Pregnancy Due Date Calculator

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Pregnancy Due Date Calculator

Calculate your estimated due date based on your last menstrual period or conception date, and see your current pregnancy week and trimester.

Calculation Method

Last Menstrual Period (LMP)Conception Date

First Day of Last Menstrual Period

Conception Date

Estimated Due Date

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Current Pregnancy Week—

Current Trimester—

Days Until Due Date—

Conception Date (estimated)—

Note: This is an estimate. Only about 5% of babies arrive exactly on their due date. Normal pregnancy ranges from 37 to 42 weeks.