HIV risk in lab?

A month ago I went and got tests done at my doctors office lab. When I sat down I noticed that there was a drop of red on the outside of the stick box. The box was not one that you pull open, but one where you just throw the needles and what not in. I watched the girl take my blood and as far as I know she did not touch that spot. But since I do have OCD I could not stop obssessing about it and I have been on and off for a month or so. I made sure that she put clean guaze and tape on me and I did not notice anything red on the guaze or the tape when she put it on me. I'm worried that her glove my have touched the red spot on the box and I could have been contaminated. I went back in and questioned the girl and lab workers. She said it was my blood and I told her that I saw it the whole time I was in there. I was pretty upset that she would say that, because I know it was not my blood. Am I at risk or not. Should I ge tested for this. I called an HIV hotline and CDC and they said its ok, but I just wanted some advice. PLEASE HELP

[Teak]

You were never at risk.