"my boyfriend and i had protected sex 1 day before my expected period. unfortunately the condom broke and neither of us noticed until after the fact. i took plan b within the hour and throughout the next few days i experienced abdominal cramps, headaches, dizziness, fatigue and loss of appetite. 5 days later i got my period. the period was different from normal but i was relieved nonetheless. you&#039;re going to read people telling you not to be stressed because it works, if you&#039;re anything like me you are still going to stress either way. just breathe, it is a waiting game but once you get your period it is so worth it."