Pregnancy Calculator - Calculator Tools

Calculate your pregnancy timeline including conception date, gestational age, and due date based on different starting points. This calculator helps you track important pregnancy milestones and plan accordingly.

Due Date	-
Conception Date	-
Last Period Date	-
Current Gestational Age	-
First Trimester	-
Second Trimester	-
Third Trimester	-

Reference Information

Pregnancy Term & Due Date

Pregnancy typically lasts about 40 weeks (280 days) from the first day of your last menstrual period (LMP) to childbirth. The due date is an estimate, with only about 4% of births occurring on the exact due date. About 90% of births occur within two weeks of the due date.

Pregnancy Timeline

• First Trimester: Weeks 1-13
• Second Trimester: Weeks 14-26
• Third Trimester: Weeks 27-40

Important Notes

• The due date is an estimate based on average pregnancy length
• Only about 4% of babies are born on their exact due date
• About 60% of babies are born within one week of their due date
• About 90% of babies are born within two weeks of their due date
• A pregnancy is considered full term between 37 and 42 weeks