Answer:
The estrogen level decreases during the ovulatory phase, and the progesterone level starts to increase. And it is important, because hormones that are being releazed stimulates the egg to move from the fallopian tube, which then leads to menstruation.
Step-by-step explanation:
The ovulatory phase begins with a surge in luteinizing hormone and follicle-stimulating hormone levels. Luteinizing hormone stimulates egg release (ovulation), which usually occurs 16 to 32 hours after the surge begins.