...afterwards , please answer asap.? last n? last night i was drunk and had unprotected sex with my boyfriend while being on my period, he didn't *** in me - he took it out before he came when i came home i was feeling sober but i know liquor was still in my system - i took the plan b pill because i heard that the faster you take it the better it works and i dont want to get pregnant. do you think that with liquor in my system it worked just as well ? or does it matter ? ALSO my period just completed stopped , does anyone know why that happened ? please answer asap .