Actually I Have unprotected exposure and later I take HIV combo test by CMIA  after 32 days it's index value is 0.41 and later on at 44th day I took a retest By immunology method it's index value is 0.07 then after at 48th I test again BY CMIA method index value is 0.88 it's bit confusing for me that I'm at risk or not it's unable to clear the condition by which I am suffering from anxiety day by day please clear Sir Also suggest which test is better and when should I take it.