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One Night Stand - Chances of Exposure Risks

I am a 25 year old female living in the U.S.  I was recently dumped by my partner after a long-term monogamous relationship.  In wake of the situation I had a one night stand with a 28 year old male from out of town, something I have never done before so you can only imagine how bad I feel now.  We did not use protection, and had sex three times that night.  I know little to nothing about this man, but he looked healthy, but I know that doesn't mean much.  

Within two weeks the lymph nodes in my throat were irritated, which lasted about two days.  I also have developed a yeast infection, and developed a cyst on the outside of my vaginal lip.  I went and got tested for HIV and all other STDs two weeks after the incident (even though I know it won't show results just yet for that incident).  Of course the results were negative.  I went to the gynecologist and had him look at my cyst and he said it did not look like herpes or warts and suggested it was more than likely a skin irritation.  It's been three weeks since my one night stand and I am driving myself crazy thinking I might have been exposed to HIV and that the cyst and yeast infection are symptoms of HIV.  My vagina is still itchy and my clitoris now hurts and is red and irritated.  The doctor did a culture and I'm waiting on those results.  

As a female who had unprotected vaginal sex with a heterosexual male, what are my chances of contracting HIV?  I am terrified that my one indiscretion is going to haunt me for the rest of my life.  The guilt of it is killing me and at this point I need some reassurance before I can get my next HIV test, which my doctor said I would have to wait 3 months to repeat to get an accurate result.  My doctor and friends think I am being overly paranoid, but this is a first for me.  Does this sound like HIV exposure?  What is a rough number of the chances for my situation?  Thank you.
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300980 tn?1194933000
Statistically your risk of getting HIV is very, very low.  Let's review why.  There are well over 300 million people living in the United Stated of whom  less than 1 million have HIV.  Thus, on the basis of this fact alone your chances of having HIV are less than 3 in 1000.  Then, realizing that infections are more common among men who have sex with other men, drug users and minorities, the chances that your partner was infected are still lower.  Then, your odds of getting HIV, IF HE WAS INFECTED, are less than 1 in 1000 exposures.  thus, your odds of infection are somewhere in the neighborhood of 3 in  a million at that point.  Finally, about half of persons who acquire HIV have positive blood tests 2 weeks following exposure.  Clearly, the odds are in your favor (this is not an endorsement of unprotected sex, just a statement of the risk).   I understand your concern but you have very little, if anything to worry about.

Hope this helps.  EWH
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239123 tn?1267651214
University of Washington
Seattle, WA
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