07bb742a_l_progesterone_estrogen_cycle___Progesterone
[Cycle] Day 1, Menstruation [Estrogen] Low [Related Events] If pregnancy does not take place, the uterine lining is shed (menstruation), and another monthly cycle starts. [Progesterone] 
Low A few milligram(mg) per day
Normal progesterone estrogen cycle.
Progesterone