I had protected sex 20 days ago (he pulled out, but some semen got on my vagina afterwards), and i'm not due for my period until the 28th (so 8 days from today). But about a week ago, my boobs started getting really sore. Worse than when i'm on my period. They also never got sore this soon before my period was due. I've been feeling dizzy and tired. I work a lot, so i figured that was why, but i'm more tired than usual. I've been gassy, and not really as hungry as i used to be. Plus i'm going to the bathroom more often, i noticed it had a different smell the other day, and i've been having more discharge than normal. Today i noticed a heightened sense of smell. I'm also really irritable, and really emotional, crying at stupid tv shows and for no reason. I've been really stressed lately with work, life, and my current relationship so i thought that might be bringing my period sooner, but it hasn't come yet. It's not late, but i'm scared that it will be. Do my symptoms sound like its due to pregnancy, or my period? thanx ahead!