Yeast infection?

Hey, I’m 17 and don’t really have a maternal figure to ask so I’m bringing it to you guys. I’m Very itchy down there, and it fluctuates throughout the day. I’ve also noticed that it’s swelling around the bottom part of my vagina. My discharge is watery and white and/or white and creamy and I haven’t noticed any weird smell at least I don’t think so… During intercourse sometimes I feel burning but not all the time and also when I pee burns a lot. There is no chance of STD or STI but I have changed sexual partners in the past 2 months and the guy I’m having sex with now was previously a virgin. We sometimes have unprotected sex. Is this a yeast infection? Bacterial vaginosis? Help! If it is a yeast infection , did I give it to him too? I really don’t want to have to tell him that. HELP!