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Due Date Calculator

Estimates expected delivery date based on LMP or conception date. Very common pregnancy planning and tracking tool.

Estimated due date

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Current week

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Pregnancy timeline chart

Changed your mind? Restore the default inputs.

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Link to the calculator page (default values).

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Link includes your current input values — opens pre-filled.

About the Due Date Calculator

Estimates expected delivery date based on LMP or conception date. Very common pregnancy planning and tracking tool.

Formula: LMP + 280 days.

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