Pcos? It just late period?

Ok ladies, I use this lovely app, to track my periods, I've never used an ovulation kit. So idk if I ovulate or when. But as you can see my period is late by four days! For the last three days I've been nauseous off and on, frequent urination( that seems to come and go) and back cramps off and on! And not to be gross but vaginal itching that comes and goes! Of course I know these are early pregnancy signs, but also AF signs! Im afraid to take a test, I rather just wait to see when my period comes lol!!  I know mentally we can trick our bodies, but I hope it isn't so! Ladies what do you think? I also have pcos!