Having a pregnancy scare..an at the same time was told its impossible for me to have kids..

Katlyn

On the 9th of this month I started my period like normal. Though it abruptly stopped on the 12th when I had unprotected intercourse with my now ex boyfriend. Here 3 weeks later. I've woken up twice to stop myself from throwing up, on top of heartburn, I have unbearable cramps, my breasts are so painful I cant even put my bra on, and as weird as it is I have gas which on all honesty is a rarity for me. Cant seem to go to the bathroom except to pee. I dont know what to this think about this. I was told I could never have kids today. So why do I feel like this? Is it even possible that I might be pregnant?