I have no idea what’s going on

I am 30 days late for my period, my breasts are getting bigger, and are firmer. I haven’t had any spotting, i’m overly hungry but i get nauseous easily. I can’t get hardly any sleep and i’m overly tired. I have taken 4 tests and they all have come out negative. One of which was at the doctors. Idk what is going on. Nor do i know what to do. Any ideas