I Might Be Hiv+??? I Dont Know!

I am praying to god that I am not but I have no idea. I just recently had the flu and I am actually still getting over it. But I had this swollen knot under my neck and when I went to the doctor he told me it was because of this open sore I had on the corner of my mouth. I am no longer seeing the man who I believe to have given me hiv if I have it. But I am with someone else now and the last thing I want to do is give it to him. I have also recently contracted gingivitis and I know this is more common in hiv patients. But it could also be from me not taking care of my teeth like I should. My mom is upset because she thinks I am hiv positive but I am trying to tell her im not. However I am going to the county health center for a test tommorrow. It might come out negative since its been less than two months with my ex boyfriend. I am a 19 year old female and I consider myself healthy. I would be devastated if my test came out positive but I dont know what/who to believe??