Due Date Calculator

Our Due Date calculator can help you work out when you might expect your baby to arrive. This will give you a rough idea. Pregnancy normally lasts from 37 weeks to 42 weeks from the first day of your last period. To find your due date, use the drop down menus below to enter the date of the first day of your last period, the length of your menstrual cycle and click ‘calculate’ - the calculator will do the rest.

Please select the first day of your last menstrual period:

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Usual number of days in your cycle: