First baby!!

Fulling really fatigue and don't really want to get out of bed, having cramps, and heart burn. I am only 3 weeks but lets see what a test says first. I really hope it's not my period it dose not act like this at all, I have to go to the bathroom may times at night, but I try to to go, even though I should. Not all that hungry but my body says different or idk what's happing, maybe I am pregnant, I hope :D