Due Date Calculator

Calculate your expected due date by inserting the date of the first day of your last menstrual period in the Due Date Calculator.

What was the first day of your last period?
How many days in your menstrual cycle?

How is your due date calculated

Your pregnancy is calculated from the first day of your last menstrual period rather than the date of conception. As women can varying in the length of their menstrual cycle, this can affect the due date. For example, a woman with a 35 days cycle will be due approximately 7 days later than a woman with a 28 day cycle.

On your first appointment with Michael, he will advise you of your estimated due date.