First it was only a teeny amount, don't feel sad or guilty...its not like you did it on purpose right ?

I have cut nails to the quick a few times and yes its scary & you feel bad but don't let it make you too afraid to keep them maintained...he'll be fine. I usually keep (I forget what its called) the powder yu can get at any pet aisle in a
WalMart ot Pet store for just this happening. Last time it happened I didn't have any, just put a drop of Hydrigen Peroxide on it and it stopped right away...every 2 weeks I have 160 yes 160 nails to clip.....sometimes they get cut too short ....relax