vibrator - bleeding

if you're still a virgin, be careful. get a smaller, thiner vibrator, cover it with a condom. see your doctor.

Tho you are still "technically" a virgin, you have broken your hymen, i would think. The bleeding after use of the vibrator means your probably to rough with it. There is a lot of tiny blood vessels thru out the vagina which can tear easily if one is rough or introducing odd things into it.
Make sure you grease up the vibrator if you don't produce enough natural lubrication of your own. And watch your fingernails.