Track and predict your menstrual cycle, including period dates, fertile windows, and cycle regularity.
The menstrual cycle is divided into phases: menstruation (1-5 days), follicular phase, ovulation (mid-cycle), and luteal phase. Understanding these phases helps with family planning and health monitoring.
Normal menstrual cycles range from 21-35 days, with 28 days being the average. Variations of 1-2 days between cycles are normal. Cycles shorter than 21 or longer than 35 days may warrant medical evaluation.