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Pregnancy Calculator
Calculate pregnancy due date and trimesters
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About Pregnancy Calculator
This calculator estimates your pregnancy due date using either the first day of your last menstrual period (LMP) or the estimated conception date. The standard pregnancy duration is 280 days (40 weeks) from LMP.
Important Notes:
- Due dates are estimates - only about 5% of babies arrive on their exact due date
- Most babies are born between 37-42 weeks of pregnancy
- This tool is for informational purposes only
- Always consult with your healthcare provider for medical advice
Trimesters: Pregnancy is divided into three trimesters of approximately 13-14 weeks each, marking different developmental stages for the baby.