Re accuring UTIs?

Alright so, is it just me or does anyone else easily get UTIs after sex? Any time I have sex with a condom I’m usually fine but the one time me and a partner don’t use a condom it’s like it totally throws off my pH or something. It’s like I get the urge to pee when I really don’t need to, and a slight discomfort for maybe a day or 2. I always pee after sex, I’ve been checked for stds multiple times and I’ve always been clean — but it’s like my vagina just does not like sex without a condom! Lol can anyone else relate?