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Pregnancy Due Date Calculator

Find your due date, how far along you are, and key milestones.

Your pregnancy details

Method

First Day of Last Period

Cycle Length

Key milestones

Due Date

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Weeks Along

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Days Left

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Trimester

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💡 How it works

Due dates are calculated by adding 280 days (40 weeks) to the first day of your last period. Only about 5% of babies arrive on their exact due date — most arrive within 2 weeks before or after.