Bleeding like a faucet. Help!

So I'm about 10 weeks. Me and my SO had sex and immidiantly after he noticed there was bright red blood all over him and the bed so when I stood up it just poored out like crazy! I've never bled like that so it absolutely scared the shit out of me! Has this happened to anyone? I'm not really crampy or anything just my normal discomfort! Called my Dr and the nurse said it was normal? I mean there was tons of blood just gushing out like crazy nothing about that seemed normal to me?!