So I took the plan b around a month ago. And I've gotten my first period or possibly spotting and everything was fine, until I started getting side effects from the plan b. So I got some cramps and back pain which was completely normal. So now I'm waiting for my second period to come (that it's a tiny bit late) and I've been experiencing extremly sore boobs with errect nipples all the time. I was wondering if this is normal because of the plan b or not? And when will they stop hurting, as they honestly feel so sore for a few days now?