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What is the Pregnancy Due Date?
The Pregnancy Due Date Calculator estimates your baby's due date based on the first day of your last menstrual period (LMP). It assumes a standard 28-day cycle and a 40-week gestation period.
How to Use This Calculator
1
Select the date of the first day of your last period.
2
Click 'Calculate' to see your estimated due date.
Example Calculation
Last period started Jan 1st
If your last period started on January 1st, your estimated due date would be around October 8th.
Frequently Asked Questions
Pro Tips
- Schedule a prenatal appointment as soon as you know you're pregnant.
- Start taking prenatal vitamins with folic acid.
- Track your baby's development week by week.