My bf & I had sex, and the condom came off (this was the 2nd of August). We're pretty sure he pulled out before anything happened, but to be safe I took a Plan B the next day (about 24 hours had passed - 3rd of August). I've been perfectly fine/normal until about yesterday (13th) I got brown blood. It wasn't a ton, but it was enough for me to wear a pad (I prefer pads over tampons). I usually do get this, but I'm pretty sure it has always been at the end of my period (I might have gotten a little tiny bit at the beginning before but usually my normal period would come that day as well). Today is my scheduled start day for my period (14th) but it's often off by a day or two either way (early/late). I had some cramps yesterday (or so I think) and they went away with Ibuprofen. I usually get cramps the day before or the day of my period (maybe the second as well). I know my period is not that late but I'm still worried. I took the Plan B that only gave one pill, and I believe it said that I should wait until about 3 weeks after I took it to take a PT if my period has not yet occurred. It has been a week and 5 days since I took the pill. I know it can make your period come a few days early or a few days late, but after how many days of not having my period should I be worried? If I wait until that 3 week mark, that will have been a week and 3 days late. I also read (from only one person) that Plan B could cause you to miss your period completely? Even though you are still not pregnant. Is this true? I don't know easily I can get a PT so I don't want to get one too early or too late or anything. And like I said, I'm kinda freaking out. Again, my period should have started today so it's not a big deal I would think, but I would like to know how long I have before I should REALLY freak out. Thank you!