I been on birth control sense I was 15 and I stop  using birth control 2 months ago .. Is it possible to become in regular  ?? last month my period was a week late  but I got and it was heavy. Then this month my period four days late yes me and my boyfriend are sexually active and we are using condoms and  during  the week of my obligation we didn't even have sex is it possible to be pregnant?   (Just a little history :My first birth control I tried was double shot then I was on the pill for three years then switch to the ring for  years)