Pregnancy Conception Calculator
Estimate the likely date of conception from your due date (about 266 days earlier) and the fertile window around it. Actual conception can vary - your doctor can confirm with a scan.
Pregnancy Conception Calculator
HealthEstimate conception date from your due date.
Conception date
Estimated conception
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Enter your estimated due date.
Frequently asked questions
How is conception date estimated?
Conception typically occurs about 266 days (38 weeks) before the due date, or roughly 14 days after the last menstrual period.
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