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Pregnancy Calculator — Free Online Tool
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Pregnancy Calculator

Calculate estimated due date and gestational age from your last menstrual period

Obstetric Guidelines: Estimated Due Date (EDD) is calculated using Naegele's rule (LMP + 280 days / 40 weeks). Enter the first day of your Last Menstrual Period (LMP) below.
Pregnancy Parameters Input

Calculation Results

⚠️ Not medical advice. For obstetrics, gynecology, and clinical reference only. Pregnancy dating, prenatal care, and ultrasound evaluations must be supervised strictly by a qualified obstetrician or gynecologist.

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