Pain when urinating

I had my second c-section July 27. At one week postpartum, I showed signs of a potential UTI (some pain when urinating and 100.3 temp). Due to postpartum bleeding, I couldn’t give a clean urine sample, so my doctor gave me broad spectrum antibiotics to cover a variety of potential infections. At my six week check, I still had pain when urinating (not immense but enough to bother me) and pain when wiping. Gave another urine sample and the tests came back all clear. Now I’m 9 weeks postpartum and still have pain. Attempts at sexual activity have also been painful on my urethral opening.

Could I have a UTI that doesn’t show on labs or do I have lasting damage from the catheter?