I was supposed to get my period the 1st of August and i still haven't gotten it. I've been eating alot, I can't sleep right,I get tired alot,I can feel my food going up my throat, i get mood swings, and i get some headaches. I have a big belly that i never had before. When i go to the restroom i see some blood but it's not period because it only happens sometimes. When i have my period i always get my cramps. Could i be pregnant?