Just lost my virginty

I'm 15 and I just lost my virginty any one have advice on what to do after sex? My aunt told me to pee right after so I don't  get a UTI but anything else I should know? 
Please be nice I know some of you may think I'm too young but I believe I'm mature enough to know the consequences of sex  and yeah please tell me some thing I should do after sex thank you lady's 😊