"i hope this helps some girls freaking out about getting their period and wondering if plan b really works. i had a condom slip with my boyfriend a couple days before i ovulated and i am not on birth control (i will be now) and after four weeks i got my period early and no side effects. for all those of your girls freaking out after reading reviews on this i really felt better and now i hope i can do the same. good luck and stay safe ladies!"