I was on birth control pills but stopped taking them on May 31 2017 and it was a Wednesday. My last period was May 29 through June 2nd. On that Friday night, June 2nd when my period ended my boyfriend and me were messing around and he started rubbing his penis against my vagina and he tried putting it in but then we stopped because we didn't have any protection. 19 hours later, I took plan b because I had read that you can get pregnant from pre cm. Now I am 6 weeks late but I also read online that if you stop taking birth control it can delay your period and mess up your cycle. He didn't ejaculate in me or anything, he just rubbed his penis against my vagina and I was very wet. Could I be pregnant?