Hi there. You have done the right thing and have tested. It seems as though you have had numerous tests all coming back as negative, I am unable to comment on the accuracy and reliability of the tests. You can rely on a negative result from a BioSure HIV self test 12 weeks post possible exposure and a positive test result can always be relied on. I would recommend waiting till the 12 week window period as this would be the conclusive negative result you need. Remember that HIV is a treatable condition and as long as you know your status you can live a long and healthy life. I hope this helps put your mind at rest and thank you for choosing BioSure. Kindest regards Francesca Bard, BioSure (UK) Ltd