🤰 Due Date Calculator
Estimate your pregnancy due date based on the first day of your last menstrual period (LMP).
How Is Pregnancy Due Date Calculated?
Most healthcare providers calculate the pregnancy due date by adding 280 days (40 weeks) to the first day of the last menstrual period. This method is known as Naegele’s Rule.
Is This Due Date Calculator Accurate?
This calculator provides an estimated due date. Only about 5% of babies are born on their exact due date. Ultrasound scans may adjust the estimate.
Who Should Use a Due Date Calculator?
- Expecting parents
- Women tracking pregnancy milestones
- Healthcare students & learners