Welcome to the Forum. You have little to worry about. Your partner was rather low risk for STD and as you know from reading at our site, acquisition of STDs through receipt of oral sex are likewise quite uncommon, even if your partner did have infection. Thus the question really comes down to how worried are you. If you want maximal reassurance before having unprotected sex with your wife, then testing may help you in this way. Without any symptoms however now, 6 days later, it is very unlikely that you have anything to be concerned about.
I hope this answer is helpful to you. EWH