You don't have to tell someone your status if you have safe sex by law. If that was the case, it would be nearly impossible for anyone with hiv to get laid. Some guys see it in this way if, if you don't use a rubber, you don't mind getting an std, already have one o ryou most do it a lot you won't be able to figure out who you got it from.
Really no reason to worry yourself, if having safe safe good as impossible to get it, when it comes to oral difficult to get ( unless youhave sore in your mouth) As said before, I am more worried about hpv and herpes.