I had unprotected sex with a woman vaginal for 2 mins whose health status is unknown, I would like to know if at 3 weeks I performed a 4th generation hiv test detecting p24 antigens, could it be the exception at 4 weeks it was positive? What is the possibility that if I test positive in one more week my fear is too much even and I had facial skin spots on my face without itching but I already had those before having sex with that girl but it was increasing as I am more prone to have problems with my defenses since my penis turning 20 days on my penis tube red and irritated every time I masturbated I think that the semen is infected and is prone to leaving a fungus inside the penis since I do not have the circumcision, excuse me Because of my bad English, I hope and someone who understands my situation will help me. Thank you, I thank you for your work.