4.3  The uterine cycle

Next, we turn our attention to the events occurring in the uterus during the same (typically) 28-day period as the events just described in the ovaries. The uterine cycle indicates the cyclical changes that occur in the uterus in response to the female sex hormones, progesterone and oestrogen.

4.2.2  The luteal phase: days 15 to 28

4.3.1  The menstrual phase: days 1 to 5