At the time of your 3/12 encounter your partner had most likely only been recently infected and, as a result, likely had high levels of HIV present in his blood.  That said, using a condom dramatically reduced your risk for infection and may have eliminate it entirely.  Had the encounter been unprotected, your statistical risk of infection would have been, on average, about 1 infection in 2000 exposures.  I'm delighted to hear that your 4th generation test  on 3/21 and /31 were negative.  Your OraQuick tests duplicate this good news.  Unfortunately, different types of tests give conclusive results at different times. Your recent tests are a bit early to be conclusive.  The results of 4th generation tests will not be conclusive until on after after 4/23 and OraQuick results will not be conclusive until 2 weeks beyond that.  I would advise you to see a HIV RNA PCR test which will provide conclusive results at this time. 

I hope this information is helpful.  Your condom use is likely to have prevented infection from this exposure but I know you would like a definitive answer sooner than later.  An HIV RNA PCR test will do that.  EWH

What is the likleyhood hood of my results changing from negative to positive im the next month? I hear so much conflicted information. The clinic told me the 4th generation test would cover the day I was exposed but what you're saying makes sense. Just so much aniexty.

An HIV RNA PCR test is conclusive any time more than 11 days after exposure.

Hope this helps.  You have one follow up remaining.  EWH