let me answer your queries one by one. no you are talking about the case of extreme rarity and you have tested enough to prove yourself negative. your girlfriend has no chance to get acquire hiv. these are the most accurate test available and detect both antigen and antibody. no human immunodeficiency virus (hiv) testing will not cause a risk to you. i have seen two such cases in my residency. but you are not having hiv. for further clarifications consult a hiv aids specialist online --> <link>
i had unprotected sex. can hiv testing be a risk for me?