Hello , I can hear that you are worried and wondering about potential transmission risks. First I want to note that we are not medical professionals and can not comment on specific risk or potential diagnosis, for your safety. We do, however, have an editorial article that information on estimated transmission risks for particular potential transmission methods, https://h-i-v.net/transmission-risks. As you can see from the article, the risk of transmission from receptive oral sex is .04 percent. However, the only way to know for certain is through HIV testing, which is why testing is recommended for regular health monitoring. This article, https://h-i-v.net/test-types, has information on HIV test types. I am also sharing this information about transmission, https://h-i-v.net/transmission, which includes a section on kissing.
Again, we are not medical professionals so I cannot speak to whether or not your probiotic with magnesium could interfere with PEP, and I would encourage you to reach out to your doctor or pharmacist to determine the safest and most effective course of action.
Hopefully this information is helpful, but please let us know if you have other questions. Wishing you gentle day. -- Warmly, Christine (Team Member)