Hi there...do not worry about the index values unless they are reactive. Since your reports are non reactive, you can relax. HIV virus sometimes can be negative in window period, which lats about 12 weeks. So it is better to repeat the test after 12 weeks again. Also always remember to take protection methods like condoms, as it helps prevent sexually transmitted infections. If you have any further queries you can visit ICTC people at any teaching hospital.