about a month ago i gave receptive oral sex to a guy i met online msm his status said he was hiv negg ddf but who really knows.i preformed oral on him for about 20 min he did not ejaculate but im sure there was pre cum i know this is all low risk but i have low grade crypitc tonsils aka Tonsillolith and i was deep throating him does this raise my risk?and does this warrant testing on it own? it was my first msm experience