hi, im on yaz low does birth control. i have been on it for about three months now. last month i did not get my period until the last day of my placebo pills, but with yaz there are only four. my cycle before birth control was around 30-32 days. my boyfriend and i do have sex and he wears a condom but sometimes uses the pull out method and he has never come inside of me. i have only missed two pills but they were not in a row and were in separate weeks. i am now on day two of my placebo pills and have still not gotten my period. i'm a very nervous and worrisome person so this is probably ridiculous but i figured i'd ask for some help anyway.