Conception Calculator

Estimate conception date from due date.

Conception around cycle day 14
Step-by-step with your numbers:
1. Values used:
2. Due date in… = 40 weeks
3. Cycle length = 28 days
4. Conception around cycle day = 14
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Conception usually occurs ~14 days before the next period. Informational only.

FAQ

Ovulation?

Ovulation typically 14 days before a period starts.