Well, I had unprotected sex the day before my period...And the next day I got it but only for a few hours and it had gone away...I waited and then on the 16th, I got it again and of course it was suppose to go away on the 18th...But it still hasnt gone away and it's very heavy. I have been having stomach cramps, feeling like something is cramped up inside...It doesnt hurt like period cramps do though...,and my back hurts...And just two days ago, I puked three times, now I am seeing veins going to my boobs...There not dark...But there dark enough to see them...Am I pregnant? =\