I Am 17 Year Old Male And I Had Sex

I am 17 year old male and I had sex with 17 year old female yesterday for maybe the 6th time of our relationship. I was a virgin before having sex with her a month ago, and she only had one other sexual partner in the past, but it was just one time and she tested clean after that.yesterday we did something new, I licked her asshole without protection or anything. This morning I woke up with a sore throat. I always lick her vagina and I've always been ok after, no sore throat. I know I was in a cold place yesterday for some time and wasn't dressed properly to suit the weather so that might be why I have a sore throat, but is it possible that I got a sore throat from licking her asshole?