I met a guy online and we hooked up yesterday. He says he only has safe sex and is negative. When we were kissing he was kind of ruff and bit the tip of my tongue. I think I might have tasted blood for a second or so, not really sure. I can see a mark on my tongue where it happened.
He did not "finish" in my mouth, but I did see and taste a lot of pre-cum. As I don't know him all that well, and he could be wrong or guessing about being negative, should I go for medical advice and start PEP? Not sure if I should really worry or not...