Women's Health • High Demand
Pregnancy Due Date & Trimester Calculator
Estimate your estimated delivery date (EDD), current pregnancy week, and trimester timeline based on your Last Menstrual Period (LMP).
Calculate your baby's estimated due date using Naegele's rule and track your pregnancy progression by trimester.
How Pregnancy Due Date Works & Scientific Formula
Our online Pregnancy Due Date uses clinically validated physiological formulas for high accuracy. Formula: Estimated Due Date = First day of LMP + 1 Year - 3 Months + 7 Days (280 days total).
Scientific Formula & Calculation Logic
This calculator executes clinical formulas recognized in medical and physiological literature:
Estimated Due Date = First day of LMP + 1 Year - 3 Months + 7 Days (280 days total).
Reference Ranges & Health Categories
Frequently Asked Questions (FAQs)
Only about 4% of babies are born on their exact due date. Most babies arrive safely between 37 and 42 weeks of gestation.
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