I took cranberry supplements and have no more symptoms of a uti is it gone?

Most likely: Uti or urinary tract infection is typically defined by your symptoms, eg painful frequent urgent need to empty your bladder. This simple version is also called a bladder infection (cystitis). When accompanied by back pain and/or fever, it's called a kidney infection (pyelonephritis). No symptoms? No infection b/c we don't go looking for infection unless you're pregnant. Then we treat asymptomatic.

Need urinalysis: You can have a UTI without symptoms. Cranberry juice &/or supplements are good at preventing utis, but have very week effect at eliminating a uti. Thus you either have got rid of the UTI by your own natural UTI elimination defense mechanisms or have a UTI without symptoms. Hope it is the former. Good luck.