"i was just like you girls, reading these reviews, terrified that plan b had failed. this drug works!!! had sex with my boyfriend june 18th, at around midnight-1am. the condom broke and we got plan b 6 hours after. my only initial side effect was nausea. i have a really irregular cycle(sometimes i have a 29 day cycle, sometimes 38) and i had no idea if this pill would make my period come early or late. my period came a month later on full force. but i had side effects from the pill in between that time- tender breasts, mood swings, sore nipples, dizziness, etc. i was on day 45 of my cycle when i noticed brown discharge, then it got heavier and turned into a period. don&#039;t be scared, this pill works, i promise!! i had a very late period!"