Due date calculator

Use this calculator to find your due date. This is just an estimate – not a guarantee! Most women, but not all, will deliver their babies within a week on either side of this date.

The first day of your last menstrual period was:

Your estimated due date is:

First day of your last menstrual period

Estimated date of conception

End of 1st trimester (12 weeks)

Date to book your birthing class

End of 2nd trimester (27 weeks)

Estimated due date

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