Due Date Calculator

June 11, 2025

Use this calculator to determine your due date
Please enter the first day of your last menstrual period and click “calculate”

Conception Date: (Approximately two weeks after your last menstrual period) You are in your First Trimester (wks. 1-12)
Maternity Health Period of greatest risk for birth defects: Five to ten weeks gestational age: to
Stages of Pregnancy Fetal organ formation:
Major organs have formed:
Beginning Second Trimester (12-27 weeks) Risk of miscarriage decreases:
If your premature baby is due after this date, s/he has a chance to survive
Childbirth Choices Beginning Third Trimester (27 weeks):
Your Due Date: (40 weeks – full term):

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