It sounds like Herpes but sometimes we can get rashes from friction or even pimples down there, so wait out the test results.
If you have it, it will probably be rough for awhile as you learn about it and accept it. Most people don't get many outbreaks and they generally fade over time.
We must be careful and honest about it of course, but it's really not that big of a deal. For instance, I have never been rejected by a woman after telling her I had it.
And if I were, good riddance as her heart would be too small for my tastes.
Sorry to hear you may be getting some bad news, but I'm sure you will get through it just fine.