It has been 5 days now and I have one other questions. I received a vasectomy a month ago and there was a little scab/scarring left on my testicles. Do I have any chance of acquiring HIV if the scab rubbed off and there was an open spot?
"...Protected oral and a massage" = no measurable STD risk for any STD. There is a theoretical risk of herpes due to HSV-1 from the scrotum contact, but that risk is extremely low for any single expsosure. As long as you don't develop obvious blisters or open sores in the spots her mouth touched, you can be confident you weren't infected. In the absese of such symptoms, you don't need testing.
Regards-- HHH, MD