The 4 Stages Of The Menstrual Cycle Aunt Flow Phase 1 — menstrual phase. the first day of bleeding is considered day one of your menstrual cycle. on this today, the hormone progesterone plunges, which causes the uterine lining to shed, aka "your period". often, a period lasts between 3 and 7 days. The menstrual cycle is broken into phases. both the uterine cycle and ovarian cycle are divided into different phases, in other words different stages (1). different events occur during each phase. there are three phases in the uterine cycle: menstruation, proliferative phase, and secretory (before period bleeding) (1).
Stages Of The Menstrual Cycle Diagram A normal menstrual cycle is a cycle that: occurs roughly every 21 to 35 days. causes bleeding for between three and seven days. once you reach your 20s, your cycles become more consistent and regular. once your body begins transitioning to menopause, your periods will change again and become more irregular. During each menstrual cycle, an egg develops and is released from the ovaries. the lining of the uterus builds up. if a pregnancy doesn’t happen, the uterine lining sheds during a menstrual. Your menstrual cycle is more than your period. find out about the different phases, how long they are, and why they can change. the menstrual cycle: understanding your menstrual phases. 1 menstrual phase (days 1 5) the first menstrual cycle phase, aka the menstrual phase starts on the first day of your period and lasts until approximately the fifth day. during this time, your estrogen and progesterone levels decrease. this decline has a domino affect, in turn reducing the production of serotonin levels too.
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