Pregnancy Due Date Calculator
Calculate your estimated due date, current trimester, progress, and important developmental milestones.
Estimated Due Date
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Current Gestational Age
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Pregnancy Progress
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Key Pregnancy Milestones
About Pregnancy Due Date Estimation
The Pregnancy Due Date Calculator helps expectant parents and health planners estimate their due date and keep track of key developmental milestones throughout pregnancy.
Calculation Methods Explained
- Last Menstrual Period (LMP): Naegele's rule assumes a standard 28-day menstrual cycle where ovulation occurs on day 14. Adjustments are applied automatically for non-28-day cycles.
- Conception Date: Calculates a 266-day (38-week) gestation period directly from the estimated date of fertilization.
- IVF Transfer: Accounts for embryonic growth prior to embryo transfer (adjusting by 3 or 5 days based on protocol).
Note: Due date calculations provide estimates. Only a medical provider can confirm your gestational timeline using ultrasound dating and clinical examinations.