What is going on with?

Last month I had a weird period it was very light for 4 days I mean by just drops of blood. I had little cramping and my periods are regular and usually heavier. So I didn't think anything of it, and like always I have no apetite when my period is about to come or while I'm on it. A week after I had nausea feeling like I need to vomit every day only in the morning but nothing comes out. This month I'm suppose to have my period today but nothing yet and usually before my period I get cramps, sore breast etc... but this time I had nothing except sore boobs. My appetite is i'm more hungry and I just don't feel like my period is coming, but i'm going to wait for a week if it comes or not. Is something going on? Please no dumb comments and don't say I need to go to the doctor.
What is going on with?
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