Hello, I Have Been Feeling An Urge To Pee And

hello, I have been feeling an urge to pee and painful urination for the past three days. I've noticed bits of clear,white, and bloody (clumps?) in my urine. They vary in color and size. I believe I have a UTI, is that a valid assumption?


p.s. I've also been taking an antibiotic for tonsillitis. Would that have any negative affect on me or would it help my situation?