The post-ovulatory period of the menstrual cycle is determined by the time between ovulation and the start of the subsequent menses. Its length is established by counting the days from when the egg is released from the ovary until the day before menstruation begins. For example, if ovulation occurs on day 14 of a 28-day cycle, and menstruation begins on day 28, the duration is 14 days.
Accurate determination of this phase can offer valuable insights into reproductive health. Knowledge of the length can aid in family planning, assessment of fertility issues, and management of certain hormonal imbalances. Historically, basal body temperature tracking and calendar methods were used; now, ovulation predictor kits and cycle tracking apps provide more precise measurements.
