smoking - either me fucking/getting fucked while smoking, better if the other lad is a smoker too
poz conversion/verbal pozzing
incest/yng/taboo
eating juicy holes
scat/piss/pigplay
eng: It might just be the recent lifestyle, and maybe anything different you ate, or any kind of this things. If his viral load count is low there's high chances theres nothing related to HIV. Lets hope for the best. Dont worry.
port: nao se preocupe, vai dar tudo certo fica tranquilo, dê umas semanas e faça o teste.