Hi, this is my first post. I'm 17 and really concerned at this point. Usually I PMS the week before my period begins; I get really sleepy, pretty bad cramping, back aches, chocolate craving and I get emotional. So a week before my last period I TRIED to have sex for the first time and it didn't work. I got my period on time and it was very clotty and generally normal. I took a pregnancy test a couple days after it ended just to be sure and it was negative. However now I'm feelings things I've never felt before. I'm having period like cramps about 12 days before my expected period. My chest really hurts, i'm getting headaches and my back hurts. I guess my real question is if it's normal to pms 2 weeks before your period, or is this just from being stressed. (Ever since I tried to have sex on May 19th I've been pretty much freaking out over everything that has been happening to my body; and A LOT of crazy stuff has been happening.)