HELP ME PLEASE// UTI?

Okay sooo long story short I thought I was spotting very weirdly but I posted my spotting to make sure it was spotting and most of y’all said it was. And then I thought I was starting my period today bc I filled like 2 pads. Well tonight only a little bit of blood is in the toilet bowl and my vagina is irritated. Could it be a UTI? What do y’all think? What could it be?