The only risks for HIV in adults are:
1) Having unprotected anal or vaginal sex, or
2) sharing intravenous needles with IV drug users.
If you do not engage in any of the activities I mentioned above with someone HIV+ or whose HIV status is unknown to you, you will NEVER have to worry about getting HIV. There is no information you could add about this event that would make it a risk for HIV.
You did not need to test at all, but since you did, you can be at peace now and move on from this no-risk event.