This calculator helps you estimate your pregnancy due date using different methods including the first day of your last menstrual period, estimated conception date, or ultrasound measurements.

Calculation Methods:

• LMP Method: Adds 280 days (40 weeks) to the first day of your last period
• Conception Method: Adds 266 days (38 weeks) to the estimated conception date
• Ultrasound Method: Uses ultrasound measurements for more accurate dating

Note:

Only about 5% of babies are born on their exact due date. Most babies are born within 2 weeks before or after the estimated due date. Always consult with your healthcare provider for personalized pregnancy care.