I Had A Sex On 18sept. During Sex My Bf

I had a sex on 18sept. During sex my bf penis get injured and blood came out. I think some blood left in my vagina. After that day i have taken a i pill without having meal. From that day i feel pain in my vagina during urination and feel like vomiting but am damn abt it that am nt pregnant. Even mow amm having pain my stomach.. plzz tell me what to do..