Pregnancy Calculator for Conception,
Gestation & Due Dates

Pregnancy Due Date Calulator

* First Day of Last Menstrual Period: first day of bleedingRequired
Average Length of Cycles: From first day of your period to the
first day of your next period. Ranges from: 22 to 44. Default = 28 Optional: Leave 28 if unsure.

This is not a diagnosis. The calculations that are provided are estimates based on averages.

Last Updated: 9/2009

The information contained on this site herein is for educational purposes only and is not meant for diagnosis or treatment. Any information found on this site herein should be discussed with a health care professional. Use of this information should be done in accordance with the health care plan outlined by your health care professional. For specific medical advice, diagnosis, and treatment, consult your doctor. All content is copyrighted by the American Pregnancy Association unless otherwise noted.

American Pregnancy Association

Promoting Pregnancy Wellness

Pregnancy Calculator for Conception, Gestation & Due Dates

Pregnancy Calculator for Conception,
Gestation & Due Dates