Lost my virginity but...

Ok so I'm 18 and I'm very inexperienced w things like this but I lost my V-card, we used a condom and everything was fine but 5 days later we had sex again but we were unprotected this time but he never came inside of me so I know I'm not pregnant and I made sure that i wasnt pregnant bc I had my period the next day and it usually lasts a week but now I've been having some problems down there for the past 3 days now. It's been itching a lot, it burns whenever I Pee and there are some bumps around it, can someone please tell me what is going? I'm really freaking out!!