The cipro was entirely out of your system within a couple days of the last dose, so it would not delay onset of symptoms or the time to reliable testing. That interval,
for gonorrhea, probably is around 2 days after the last exposure.
For chlamydia it may be longer, e.g. 5 days or so, but as I said, chlamydia is not a significant risk from oral sex anyway.
Your symptoms indeed sound consistent with prostatitis.