Need advice

So this may just be me being paranoid but today my bf was fingering me and while he was doing so I could like feel him grabbing me which was like him basically pressing a finger or two like on my asshole it's not like he stuck a finger in my ass or anything but I'm just worried that from doing that and switching between fingering me and clit stimulation that I'm gonna get a UTI or something from his fingers being around my asshole (TMI IM SORRY!!!) I always pee after I'm done anything but this time I tried and it was a bit hard as I'm sore from all the damn friction should I be worried? What could I do to calm myself down