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Pregnancy Due Date Calculator
Calculate your pregnancy due date and track your pregnancy progress. Get trimester information and important milestones.
Pregnancy Information
About Pregnancy Due Dates
A pregnancy due date is calculated as 280 days (40 weeks) from the first day of your last menstrual period. This is based on the assumption of a 28-day menstrual cycle.
Trimester Breakdown:
- First Trimester: Weeks 1-13
- Second Trimester: Weeks 14-27
- Third Trimester: Weeks 28-40
Important Notes:
- Only 5% of babies are born on their due date
- Most babies are born between 38-42 weeks
- Consult your healthcare provider for accurate dating
- Ultrasound dating may be more accurate