👶 Conception Calculator
Estimate conception date based on due date
About Conception Date
Conception typically occurs about 266 days (38 weeks) before the due date, usually within 24 hours of ovulation.
How It Works
This calculator estimates conception date by counting back from your due date. The actual conception window is typically 3-5 days.
Frequently Asked Questions
How accurate is this?
Estimates are within 3-5 days for most women with regular cycles.
When does conception occur?
Conception occurs when sperm fertilizes the egg, typically within 24 hours of ovulation.