Calculate your next period and ovulation date based on your last period.
Menstrual cycle and fertile days
The menstrual cycle is a natural part of the female reproductive system and averages 28 days, but anywhere from 21-35 days is considered normal. Tracking your cycle helps you better understand your body and monitor your health. Ovulation typically occurs 14 days before your next period. The fertile window is a 6-day period that includes the 5 days before ovulation and the day of ovulation. This information is important for family planning. Irregular menstrual cycles can be a sign of conditions such as stress, weight changes, hormonal imbalances, or polycystic ovary syndrome (PCOS). If you experience persistent irregularity, it's recommended to consult with a gynecologist. Menstrual cycle tracking is a valuable tool for pregnancy planning, choosing birth control methods, and monitoring overall women's health.
Find answers to common questions
A normal period cycle ranges from 21-35 days. The average cycle is 28 days. Cycle length can vary from person to person and this is considered normal.
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