Health
Pregnancy Due Date Calculator
Calculate your pregnancy due date and current week.
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Pregnancy Due Date Calculator
Leave blank if using conception date
Results
Formula & Methodology
Naegele's Rule:
Due Date = LMP + 280 days (40 weeks)
Pregnancy Stages:
Weeks 1-12: First Trimester
Weeks 13-27: Second Trimester
Weeks 28-40: Third Trimester
Due Date = LMP + 280 days (40 weeks)
Pregnancy Stages:
Weeks 1-12: First Trimester
Weeks 13-27: Second Trimester
Weeks 28-40: Third Trimester
About Pregnancy Due Date Calculator
Our pregnancy due date calculator uses Naegele's rule — the standard medical method — to estimate your expected delivery date based on the first day of your last menstrual period (LMP).
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