I wasn't really concerned about anything until last night, when a girl I know said that she was suspicious that the last guy I had slept with (who she knows) is now injecting heroin. I don't know if this is 100% true, because he and I are no longer on speaking terms. This makes me a little uncomfortable, and so I want to get tested again for reliability. Even though I only slept with him twice and I know the transmission possibility is low, I was just wondering what the reliability is of a test at 5 weeks after possible exposure? Evidently, I am not sure how trustworthy the guy is anymore, so I'm just looking for some insight here.