if this is the first time that you have had sex this bleeding can be from your hymen - a thin vascular tissue that surrounds the opening of the vagina. this often will bleed from tearing. burning with urination can also be related to first-time sexual experience (often called "honeymoon cystitis") but it can be from a urinary tract infection. should this burning (or bleeding) persist you may need to see your medical provider for a proper examination and a urine test to see if you have an infection.
is it normal to bleed a lot during sex for the first time? now it burns whenever i pee.