HELP PLEASE:

I really really desperately need advice . I've only ever had sex with one guy before earlier this year in January (no problems/complications). Just the other day I had sex with another guy. Right after the first day I bled for about three days. I also had burning itching feeling in my vagina since that day. The bleeding stopped but the burning/pain/itching feeling is still there especially when I pee. I have no insurance or money to to go the doctor- and my parents will go crazy if I ever did and they found out I had sex. I just hope I don't have an std. I didn't use a condom. He said he didn't have anything and he's clean but I'm scared !