The cramps are by far the worst I've ever had. They're so bad that I can't even breathe until it passes. I've been nauseous off and on but it hasn't been too bad. I've had gas, nauseous, dizzy, and bloated for about a week now but non of them are too bad. My breasts are bigger than usual and they're pretty sore. My boyfriend and I had sex two weeks ago, he came in me but we were using a condom. I started my period yesterday so I can't be pregnant, right? I'm starting to get a little worried. I thought I might be pregnant but then my period came so I don't know what to do