Conception Calculator

Conception Calculator

First Day of Last Period:

Average Cycle Length: 22 Days 23 Days 24 Days 25 Days 26 Days 27 Days 28 Days (Average) 29 Days 30 Days 31 Days 32 Days 33 Days 34 Days 35 Days

Estimated Conception Date --

Likely Fertile Window --

Note: Most conceptions happen within a 6-day window ending on the day of ovulation. This calculation is an estimate based on average biological timelines.