I received an oral sex I am woman from someone who I don’t know if is healthy or not ,what are the chances of getting hiv that way? And also I had a situation when I bit myself and I was bleeding and I kissed someone once what are the chances he could have me something? Also I am taking pep but I didn’t see that my probiotic I was taking had magnesium salts of fatty acids and I am worried it’s not gonna work after last oral sex please answer on everything