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Calculating your due date
Calculating Your Due Date
Figuring out your estimated due date is simple. Add 7 days to the first day of your last normal menstrual period. Then count backwards 3 months. That's it!
Here's an example - let's say your last menstrual period started on June 14. Add 7 days to June 14 and it equals June 21. Then count backwards three months and March 21 becomes your estimated due date.
Or, use our calculator below. Fill in the fields in the top 2 rows, hit "Calculate!" and the information in the bottom 3 rows will be automatically generated.
Due Date Calculator
Review Date: July 11, 2001
Reviewed By: A.D.A.M. editorial.
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