If you don't know how this works or forgot you need to have this awareness when you begin a natural hormone treatment program. I searched for a long time to find an over the counter Bio-Identical cream that was organic. Check it out here on this board.
Hypothalamic-pituitary cycle. FSH: Stimulates development of ovarian follicles. LH: Stimulates the follicle to release the ovum. Gn-RH: Stimulates the release of the hormones FSH and LH from the pituitary. Estrogen & Progesterone: Falling levels of these 2 hormones stimulate the hypothalamus. Corpus Luteum: Post-ovulation follicle develops into "yellow body" that produces progesterone and some estrogen.
This phase is characterized by the activity of the corpus luteum, which produces progesterone. The signs of estrogen stimulation subside and the corpus luteum starts to form. The uterine lining begins to appear. In the absence of pregnancy the diestrus phase (also termed pseudo-pregnancy) terminates with the regression of the corpus luteum. The lining in the uterus is not shed, but is reorganized for the next cycle.