Hey I am on birth control but....

I am having serious gas problems, heart burn, I had blood in my stool as soon as all this started and on the same day as the blood I also had stomach cramps so bad I barely ate anything all day. I have also been overly emotional and had vivid dreams and I am ALWAYS hungry. :( I am not quite ready for little ones yet since I lack a semester being done with school. I have been taking the pill like normal but I am convinced that something is happening to my body. It's either stress or a baby I guess I would love to know if any mothers had these super early symptoms and how early the started appearing....