2 months? Get a test, should be reliable already. As for HPV, if you dont show any genital wart, you shouldnt worry about it (as there's no test to find HPV, so you cant do anything about it)
Decisions that may lead to ambiguity about one's health risks always result in anxiety. Why don't you go on the doctor forums -STDs and keyword search oral and hiv and see what you get. I'm sure you'll be super relieved at what you find.