"i had sex the day my period had ended, so i was not fertile. while having sex, the condom had slipped off inside of me. i was super paranoid about any cum coming out so i took plan b about 12 hours later. i had symtoms about two days later - moody, nausea, fatigue. about a week later i then bled for three days, and it wasn&#039;t my regular period. my normal period did not come at the expected time. it was about two weeks late until i got it! i took a pregnancy test when it was a week late and it came out negative. the pill does mess up your cycle. super scary experience, but try to relax! you&#039;ll be fine!"