Evidence-based guides that help you understand your cycle, fertility, ovulation and safe days.
Ovulation lasts a matter of hours, but the window it creates lasts about six days. Here is why that gap exists, and what actually decides when it opens.
Most tracking errors come from counting the wrong day. Here is how to record a cycle properly, what to log beyond dates, and how many months it takes before predictions mean anything.
Cycle length naturally varies by a few days. Here is where normal variation ends, what commonly causes irregular periods, and the signs that warrant a medical appointment.
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Use the AI-powered Safe Days Calculator to see your estimated fertile and lower-risk days.
Calculate My Safe DaysMy Cycle Safe AI is an educational menstrual cycle tracking tool designed to help users understand their periods, fertility windows, and cycle patterns.
My Cycle Safe AI provides informational estimates and does not replace medical advice. Always consult a healthcare professional for reproductive health concerns.
