I feel like crap!pregnant?

I doubt this is due to pregnancy, it's way way early to be feeling any of this honestly.I didn't feel cravings or extra hunger until i was about 10 weeks..though i had trouble eating for some reason. Not that i had morning sickness it was just hard to want to eat anything. I would want something then the next minute it sounded gross. I bet this is totally either something else, or just you stressing thinking that you're pregnant.