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

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.
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.