steps on how to use cytotec, One more important thing. If u get still negative on 45th day, you can confirm u are not pregnant. In this situation you have to go to a gynecologist and tell her your problem. If u go after 50 days is better. I mean u can wait for 5 more days for periods. No need to do pt again. Because mostly doctors will not do any treatment or detailed check up before 50 days.