Due Date April 20 2025

Due Date April 20 2025. This free pregnancy conception calculator estimates a range of conception dates based on a provided due date, last period date, or ultrasound date. Your session will time out in:

Your due date is calculated by adding 280 days (40 weeks) to the first day of your last menstrual period (assuming a 28 day cycle). The due date may be estimated by adding 280 days ( 9 months and 7 days) to the first.