Disappointing you started a new thread after we fully advised you. No risk means stop pep (never should have started it) and don't test.
Since you didn't have a risk, NOTHING can affect the test. It will be negative no matter when you take it.
If you absolutely must get tested for peace of mind, the guidelines are the same no matter how many doses of PEP you take. The 4th generation (Ag/Ab) test should not be taken until 28 days after your last dose of PEP. Again, it doesn't matter because any test you take at any time will be negative.
Too add on the statement of the topic the doctor is actually saying there is a little risk but doesn’t require special action