Why would i fill like this if i wasn't pregnant?

So i don't know what to think nobody else around me is sick and i have felt nauseous for a week on and off I am so forgetful now and when I eat something its like a hour later and im hungry again and I had a little bit of cramping the other night but it was just a couple of seconds long but im not suppose to start for another two weeks so why else would i have a cramp but everyone is saying its to early to fill any symptoms so does anyone know if its possible i could be pregnant and im just one of those women who got early symptoms. cause I dont want to get to excited and find out im not.