Identify your most fertile window for conception.
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Enter biometric metrics to generate report
This assessment provides statistical probability and mathematical interpretation based on validated clinical equations. It is not a diagnostic tool.
Tracks your menstrual cycle to estimate the window of peak fertility. Understanding your ovulation timing is the most effective way to optimize the chances of conception or better understand your body's natural rhythms.
The science of modern fertility tracking was revolutionized by Ogino and Knaus in the 1920s, who independently discovered that ovulation occurs about 14 days before the next period.
For 48 hours leading up to ovulation, your body often shows physical signs like clear, 'egg-white' cervical mucus. Use this calculator as a map and your body's signs as the compass.