My period has been over for a day now and i just had sex and there was blood my boyfriend and i just recently had sex and my period has been over for a day now and when he pulled out there was blood on his penis and some on my vagina, what is wrong?

This : This is completely normal. At times there is blood that is "stuck" so to speak in the vaginal vault(region at the end of the vaginal canal at the internal end of the vagina). When the penis is introduced into the vagina during intercourse it can dislodge this blood. Unless the bleeding persists or you have pain with intercourse there is nothing to worry about. If this does occur you need to have a complete evaluation/examination by your primary care provider or gynecologist.

Vaginal blood: This doesn't mean that anything is necessarily wrong. There may be residual blood from your period in the vagina.