07bb742a_l_progesterone_estrogen_cycle___Progesterone
[Cycle] Day 24 [Estrogen] Drops to low level [Related Events] If the egg is fertilized, progesterone from ovary continues to rise. Any drop in progesterone level results in menstruation or miscarriage. Later during pregnancy, the placenta produces up to 3000 to 4000 mg/day of progesterone . [Progesterone] 
Drops to low level
Normal progesterone estrogen cycle.
Progesterone