Sick during ovulation?!?!

My cycle isn't normal, but I usually start with in 5 days before or after the previous cycle.. This month I'm still 9 days out from aunt flo visiting... The the last few days I've been gassy , and have heartburn like crazy.. Stomach is upset but I don't feel sick sick.. Constantly have to pee and constantly feel hungry if I don't eat every couple hours..not to mention being tired all week and did nothing too strenuous ...Could this be from ovulation or could it be possible I already ovulated and having early signs of pregnancy?