HIV TEST RELATED QUESTION. A lot!

Hi 3 years back after having inter course with unknown partner where my condom broke without my knowledge. I took a test after 5 months ( 2013) and ref range was .09 and at the end result written was positive. In 2015 Nov , I took a elisa test which came negative. 3rd Jan 2016 , another test for antibodies came non reactive 28th Jan another test came non reactive 2nd Feb western blot for hiv 1 ... interpretation was negative ( only p66 band was positive , rest protein band were negative ... so overall it was negative. 27th April EIA antibody test came non reactive. My question is if I am positive from my first test than I should remain positive throughout my life. Please help and explain... I am freaking out after so many negative test but still looking thinking a lot