Couple of things. First, you NEVER had a risk for HIV. You absolutely would know if it is intact or not as they do not break in a small way and as long as your head was covered of your penis (and you know if it wasn't), you were protected. The only risks for HIV are unprotected vaginal or anal sex or sharing IV drug needles. Air and saliva inactivate the virus. So, ZERO risk. Secondly, prednisone does NOT affect an hiv test.