"i took this about one hour after unprotected sex, he pulled out and when he finished he didn&#039;t finish inside of me but some of his semen did land on my area, and of course i started freaking out. so i went to the nearest walmart and bought this plan b pill. this happened on july 17th, and my period was due for around july 28th-30th somewhere around those days. i didn&#039;t experience many side effects, just some cramping in my abdomen and a little above my hips &amp; this went on for about 2 weeks on and off. i was very worried but i was trying not to stress too much because stress does affect your period, but i&#039;m glad to say that i got my period on july 30th and it was like my usual monthly period :)"