"i had unprotected sex a few days (2 or 3 days) before my expected ovulation. the condom broke, so if i was fertile, i was definitely going to be pregnant. but we went to walmart and bought the plan b; i took it after about 3 hours because i had been reading reviews and got scared about the potential side effects. but i didn&#039;t get any horrible side effects from it; only light cramping at random times. i started bleeding about a week afterwards. it didn&#039;t feel like a normal period. i&#039;m pretty sure it was just my uterus shedding itself. this lasted a week. it was kinda heavy at first and began to taper off each day that went by. and there was only light cramping  (thankfully). my normal period came after 4 weeks. (so it was a week late.)"