Gonorrhea & chlamydia detection test typ

I had a protected sexual intercourse with a woman a month back & after almost 3 weeks i had a white discharge from my penis , but note i. Have an active sexual life & masturbate almost 2- 3 times a day but when i had a white discharge in the morning i didnt had sex for 3 days so i doubt that it was nothing but my semen produced in excess due to my active regular masturbation ( atleast 1-3 times a day ) . There are no other symptoms such as pain & burning or swelling or urgency of urinating etc . i consulted a doctor and he said everything is fine dont worry and its normal according to him So he Ordered a urine culture & sensitivity test for me . So now my. Biggest & confusing concern is regarding the testing procedures . So the gonorrhea & chlamydia testing available is. Through pcr qualitative method but it is very costly . So i just want to clear my doubt that can a basic urine culture & sensitivity test detect bacterial infection like gonorhea & chlamydia ?