Maternity & Obstetrics Naegele's Clinical Formula & ACOG Guidelines

Pregnancy Due Date & Gestational Age Tracker

Calculate your Estimated Date of Delivery (EDD), current gestational week, and essential prenatal scan milestones based on your last menstrual period.

Clinical Oversight: Dr. K.R. Vasuki — Senior Consultant Obstetrician & Gynaecologist

Patient Clinical Parameters

The first day your last normal period began
days
Standard cycle is 28 days (typical range 24–35)

Clinical Assessment Result

Calculating...
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units

Enter parameters above and click calculate to view clinical insights.

Physician's Guidance

Review guidelines provided by Annai clinical specialists.