I don't think the relationship is such that you can definately rule out intersexuality just because your testosterone level is where it is... I'd read that there might be no physiological abnormalities in a chromosomally intersexed person -- so I think the only definative test is an actual chromosome analysis.
I asked my endo at my first visit a couple weeks ago if she could do this, and she said I'd have to find a geneticist for that.