Should I get checked out?

I had sex 1 day ago and yesterday my vagina was hurting a little and feeling a little weird when I felt it. I had sex again yesterday and I bled. I went to pee and there was blood on the toilet paper when I wiped. My vagina still hurts and feels a little weird like kinda rashy like feeling, it doesn't hurt bad but it's a little pain. Can someone explain what might be the cause of this.