I have an incident of receiving oral for only about 10 seconds underwater. Because of that after 5 months of this incident I did hiv 1 and 2 antibody test then the first result index value is 0.23 and in second 0.25. These tests are after 5 months. So this is negative I know but index value of this test increased by 0.2 so will it turn positive in future? I'm very depressed about it. Does the difference in index value increase?