Calculate your due date and pregnancy week. Track your pregnancy progress with this simple LMP-based calculator.
Method:
Due Date = LMP + 280 days (40 weeks)
Adjusted based on cycle length
The due date is an estimate. On average, babies are born within 2 weeks before or after the calculated due date. Always confirm with your healthcare provider.
LMP (Last Menstrual Period) is the first day of your last period. Most pregnancy calculations use LMP as the reference point, even though conception typically occurs 2 weeks later.
Yes, if your cycle is longer than 28 days, your ovulation may occur later, moving your due date forward. This calculator adjusts for your actual cycle length.