I was on orthotrisiclin low birthcontrol for 1 1/2 years, now my husband and I want to have a baby. I went off the birth control last July, I had a period in mid September, it is now mid January and I haven't had a period since then, but I'm not pregnant. I went to my docter and she proscribed Prometrium (progesterone) to jump start my period. I will start taking it tonight and will take it for 12 nights, when can I expect to get my period? Will I have normal ovulation and periods after this? How soon can I start trying to get pregnant again.