I am 17 years old. I got my period July 8-11. My boyfriend and I had sex the 12-22 at least once a night. We turned the light on on the 19th and noticed the condom was broken. I took a Plan B pill on the 20th. We had sex the next two nights and again on the 25th. It's been a week and a day since I took the Plan B pill and I've had sore breasts for the third day now, I feel as if someone has used them as punching bags. I feel my lower abdominal is tense or tight. My lower back has been killing me and I feel no matter how late I sleep in I am drowsy throughout the day. I have also had gas the past few days too. And I feel no matter how much I eat I'm always hungry 20 minutes later. I used the bathroom yesterday and noticed a light pink spotting? And today I noticed I was spotting light brown. I'm due for my next period until August 5th. I've take plan b twice before and never had these symptoms. I also don't get symptoms when I get my period. I've had my period since I was 9 and I've only gotten cramps maybe 4 or 5 times since then. Is there an explanation for these symptoms? Please help!