07bb742a_l_progesterone_estrogen_cycle___Progesterone
[Cycle] Day 10 [Estrogen] Surge to high [Related Events] Mature follicle releases estrogen to promote thickening of uterine lining and to stimulate the pituitary gland's secretion of luteinizing hormone that induces ovulation. [Progesterone] 
Low
Normal progesterone estrogen cycle.
Progesterone