Hello! I had gone through query. Only certain fluids—blood, semen (cum), pre-seminal fluid (pre-cum), rectal fluids, vaginal fluids, and breast milk—from an HIV-infected person can transmit HIV. These fluids must come in contact with a mucous membrane or damaged tissue or be directly injected into the bloodstream (from a needle or syringe) for transmission to possibly occur. Mucous membranes can be found inside the rectum, the vagina, the opening of the penis, and the mouth. HIV is spread mainly by: -Having unprotected sex (sex without a condom) with someone who has HIV. -Sharing needles, syringes, rinse water, or other equipment (works) used to prepare injection drugs with someone who has HIV. If you are sure intercourse didn t happened (no penetration) and there was no contact of your vaginal mucous with his seminal fluid you should not worry because there was no exposure to HIV. Hope my answer has helped. Take care. Dr.Rovena