After 11 weeks (78 days) post exposure, I took an Oraquick oral fluid test, it showed up a pretty faint line in T area. I was scared and immediately had a duo test ab/ab lab test, the result came back negative. I was so confused as the maker of Oraquick claimed that the test has sensitivity of 93%. Besides, I took some rapid ab/ag tests (Alere from Abbott using finger blood) at 3 months mark, and all negative. Can you please clarify this out? Do I need further testing?