I am perimenopausal and because of irregular cycles (I skip a month then have two or three week period) I was given transvaginal and pelvic ultrasound. Endometrium and one ovary were on the "high" side of normal. My doctor sent me to a gynecologist who said everything was actually pretty normal for my age, but wants meto starton provera. Now, I had a spontaneous blood clot five years ago and my brother died of a pulmonary embolism. We ate all factor V Leiden. I am on coumadin. Do I risk taking a hormone?? I really feel fine, but I don't want to develop endometrial cancer. Suggestions?