© 2007 Dr. Len Kliman


When was the first day of your last menstrual period?


Number of days in your menstrual cycle
Your due date is (40 weeks):
Likely conception date:
End of first trimester (12 weeks):
End of second trimester (27 weeks):
Number of weeks you have been pregnant for:
About the pregnancy calculator
These dates should be used as an estimates only; they are not an exact calculation. The calculator may not provide an accurate reading if you have irregular ovulation or menstrual periods. Always consult your physician or doctor to determine your correct due date.

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