None of the tests are really conclusive unfortunately. Did your doctor do a total IGA? There are quite a few of us who are IGA deficient which will make the IGA testing consistantly negative even if we are celiac.
I don't know if they did a total IGA. All the paperwork said was "Endomysial Antibody IgA and t-Transglutaminase ( tTG) IgA" that was it.