Hi 1997 Thanks for getting in touch. The problem with HIV tests like the BioSURE HIV Self Test is that they rely on detecting antibodies to HIV produced by the person testing. The process of creating these antibodies is extremely variable. Some people make the antibodies are 3 or 4 weeks, a very small number don't make them until 12 weeks after infection. At 7 weeks around 95% of people would have made enough antibodies for the test to work. So your test result is extremely encouraging, but should not be considered as conclusive. I hope that this helps. Kind regards Gary Carpenter BioSure (UK) Limited