"plan b works!!!! i had an unplanned encounter with a boy who i was not with and have no real relationship with. we ended up having sex twice in one night unprotected. i wasn&#039;t on any birth control. i started to panic and so went and got plan b approx 14 hrs after the incident. i had to wait 2 whole weeks until i got my period!!! worst wait of my life as i basically convinced myself i was pregnant. i had next to no side effects, other than maybe slight abdominal cramps, which freaked me out more as i believed because i didn&#039;t have any side effects, plan b didn&#039;t work. but have faith! this is very effective and this is my second time taking it and it has never failed. be patient and don&#039;t worry x"