This isn't the first time I have taken Plan B, the first time was May of this year. I got my period regularly and I did not have any side effects. This Saturday my boyfriend and I were having protected sex but he put the condom on incorrectly, he pulled out before he came however just to be sure I bought Plan B on Monday. I went to the bathroom around 30 minutes ago and saw light brown blood I'm presuming, I washed my hands and checked and it was from my vagina. I'm not sure if I should be freaking out or not because I've read responses on other articles and I should be fine?