So girls I have a question please help answer it for me!!!!! I'm having a Sonohysterogram done but I've been on birth control for nine months. I was supposed to be scheduled a week from today but there was no openings so now I've been scheduled two weeks from today. Now I've been reading and what I've read has said it should be preformed from day 7 to 10 of your menstrual cycle unless your on birth control then it can be any day your not bleeding. Now my question is since I'm on birth control if I don't get my period because it's not time for the placebo pills till a week after my Sonohysterogram is performed can I still get it done with out having had my period yet. Since I'm on birth control would i still need to be at cycle day 7 to 10 I would think I wouldn't because my lining is already thin from birth control so why would it matter. Please help answer this for me!!!! I've also had irregular bleeding for a month on and off if that also helps.