help!!!

my boyfriend and I started having unprotected sex last month, I took emergency contraception two days after. we continued the unprotected sex w/ pulling out and I got what I think was my period five days after taking the pill. it was really light but lasted around five days. my period ended and I went out of town, we havnt had intercourse for two days, and I started getting an itching burning sensation. After sex today I have burning and inflammation of labia and bleeding during/after sex. could this be my period again?? and the irritation possibly a yeast infection w/ out discharge? if anyone knows what this could be or has any advice please let me know!