Conception Date Calculator

Want to know when you were conceived? Use our calculator below to find out!

Pregnancy calculations are not so simple. We've all heard the pregnancy lasts 9 months. Actually, "full term" is considered 40 weeks from the first day of the mother's last period.

Ovulation typically occurs 12-14 days after the first day of the last period. To become pregnant, intercourse must happen 3-5 days before ovulation.

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