Your question has been answered in this and previous posts.
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Sero-status, if has to change, it will change right after the moment one is infected, the question is whether the detectable amount of antibodies are formed or not for the test?
Now, for modern day AB/AG test, it's very hard to miss an infection because they are relatively much sensitive to the tests earlier than III generation, even a slight amount of antibody can be detected sooner than 6 week in maximum cases plus, the advantage of antigen detection only minimises the window period substantially.
Therefore, your question is not apt for this date, testing at 90 days to eliminate the doubt of late of sero-conversion is completely irrelevant today.
Thanks for the answer, my friend, but I am asking for the sake of knowledge, no more. I only need general information
Your question doesn't make sense sir. Obviously risk matters. You had no risk and if you continue to question if you have HIV from a no risk situation, that makes it purely anxiety based. ANY any (repeat any) test that you take from your exposure will be negative because you didn't have a risk. There is nothing else to tell you so please accept this fact and speak to a doctor about health anxiety as that is your real issue at this point.