Hello there my hiv duo test results on 42 th day. anti hiv 1/2 : 0.07 p24 antigen: 0.01 (scale is 0.25) here is my quesiton: when i search the web some people say p24 antigen has to be 0.00 mine is 0.01 should i worry?

You have misunderstood something you found on web searching. It is not true that the index value must be 0.0. It only must be lower than the index value that defines a positive result, which usually is 0.9. Any number below that mean the test is completely negative, that p24 antigen is absent. Your negative result at 42 days proves conclusively you do not have HIV. Congratulations!