Symptoms of UTI but negative urine test?

Alie

For the past three days I've had mild symptoms of a UTI... a little stinging when I urinate and that general uncomfortable urge to go a lot. I went to an urgent care and my Urine had a tiny bit of white blood cells but I tested negative for bacteria implying no infection 🤔 anyone have this issue? I've been taking cranberry pills and AZO relief pills which help but I can't seem to kick this thing completely!!