From unprotected oral sex, you could get gonorrhea, NGU, syphilis and genital herpes type 1.
Chances are lower with oral sex than with intercourse, but its still a real possibility.
If you must visit escorts, then please use condoms for oral sex.
Has your wife seen her doctor? She wants to make sure everything is ok from delivery, and she can talk to him/her about the problems she is having with sex.
Aj
I forgot to mention: I have no symptoms what so ever. almost 4 weeks have passed since last time.