Or, you shared drug works with her. Protected sex is an HIV
Saliva deactivates HIV
, disallowing transmission be it to the giver nor to the receiver.
A conclusive HIV test is acquireable at 3 months post-exposure using HIV antibody test, not 6 months. But if you insist on taking that, you'll get a negative result anyway given your NO HIV RISK and at the period there's nothing such as false negative, which is why WE DON'T RECOMMEND THAT.