Hi, I know many people already receive and answer a lot of questions about HIV and oral sex. But I just want to ask again to make myself calm. Hopefully, someone experience will answer my question. I had an oral sex 1 week ago (Giving and receiving Fellatio) to someone which I don't know his HIV status, I never did any kind of sex (anal or vagina). Only fellatio, and open mouth kissing. One time in my life so far. I have a very little gums problem (Already long time been there because of teeth problem, but it is not bleeding). He also did not ejaculate in my mouth. Only pre-cum. Now I really worry and scared I may be infected by HIV. Please your kindly suggest and feedback regarding my situation based on your experience. Thanks a lot