Can you please let us know the kind of antibiotics you have been on. I will suggest you do antibiotics sensitivity test from this point i.e. collect semen/ urethral swap/ urinalysis
and do sensitivity to get the appropriate antibiotics. Then after treatment redo semen analysis
to make sure everything is ok. Sperm morphology, motility and count should be analysed and if they are all fine, then you have greater chances of conceiving i.e if your wife is also able to conceive. Because she on the other hand needs to be thoroughly examined too to rule out any infertility
issues from her part.
Wish you luck