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Answer:

The follicular phase: The time between the first day of the period and ovulation. Estrogen rises as an egg prepares to be released. The proliferative phase: After the period, the uterine lining builds back up again. Ovulation: The release of the egg from the ovary, mid-cycle.

The follicular phase starts on the first day of menstruation and ends with ovulation. Prompted by the hypothalamus, the pituitary gland releases follicle stimulating hormone . This hormone stimulates the ovary to produce around five to 20 follicles , which bead on the surface.