Menstrual cycle Parents Are Talking Posted on September 13, 2016 by PATTeamSeptember 13, 2016 the time from one menstrual period to the next, in the absence of fertilization when the lining of the uterus is shed and re-grown in preparation for fertilization. The menstrual cycle is about 28-30 days in most women.Related Articles:Glossary: MenstruationGlossary: OvulationReproductive Health - Responsive TableGlossaryReproductive HealthRelated Terms:Term: FertilizationTerm: PeriodTerm: Uterus