I have endometriosis, and about 10 years ago I had the surgery where they cleaned up all the fibroids. My only symptoms of the endo are extreme lower back pain and cramps when I ovulate. Ten days ago I had a frozen embryo transfer, and am on my two week wait until my blood pregnancy test. (3 sleeps left) The last two nights asleep, I have been awakened by the same kind of ovulation pains & cramps. I am certain that there is no way I could be ovulating right now, and am wondering if maybe it might be my endometriosis that is acting up because of the estrogen and prometrium I am taking. Any ideas?