Bacteria in urine but urine culture negative

Went to doctor because i felt a weird sensation when peeing and my urine was not as clear as it usually is. The doctor did strip test and she said i had a little bacteria in the urine. She sent the sample to the lab and the urine culture came out negative, no infection. She had prescribed be antibiotics and I started taking them before my results were available, should i keep taking them? Has anyone had this happened before? Can you share your experience? Thank you in advance.