
Originally Posted by
Danger Kitty
The prometrium may not have worked because you simply didn't have enough lining to shed. If it's been more than 2 weeks since discontinuing the progesterone supplementation, it won't work.
In a normal cycle, estrogen causes the lining in your uterus to build until you ovulate. Once you ovulate, your body produces progesterone to support a pregnancy. If you are not in fact pregnant, the body stops producing progesterone, and when the levels of it fall sufficiently, you have a period to shed the built up lining.
If you are prescribed prometrium (natural progesterone, derived from yams) or provera (synthetic progesterone), you take it long enough to simulate a luteal phase, and then the withdrawal (after you stop) stimulates the bleed.
You have a few options - take an oral contraceptive for a cycle (yazmin is one option), or take a cycle of estrogen for 15-20 days (to build the lining), then continue estrogen WITH PROGESTERONE for 7-10 days.
hth,
dk