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Due Date Calculator — Free Online Tool
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Due Date Calculator

Estimate pregnancy due date and gestational milestones via Naegele's Rule

Naegele's Rule: Calculated by adding 280 days (40 weeks) to the first day of the Last Menstrual Period (LMP). Enter your LMP date below.
Pregnancy Timeline Input

Calculation Results

⚠️ Not medical advice. For obstetrics and prenatal education reference only. Pregnancy confirmation, estimated due dates, and prenatal care must be established and monitored by a qualified obstetrician or healthcare provider.

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