okay so im really emotional rn bc my boyfriend just finished in me for the first time ever and i dont know what to do. ive been on birth control for a month and a half and i havent missed a single pill and i took them at the same time everyday. my period is supposed to come next week, and im pmsing really bad rn so i think its on its way. should i get plan b? i know it messes up your system bad and im 17 so i dont know what would happen. im just scared i don’t know what to do