My kitten is bleeding from the mouth!!!!?

ok, earlier today, we found a kitten that our cat had had.I would think it would be about 5 or 6 weeks old.We brought it inside and tried to feed it, but it just kept hissing at us.Also, the poor thing was shivering so much, i took it back outside to its mother.I put it back in the exact same place that i found it(in the bushes) thinking that my puppy(petey) couldn't get to it.It ran further into the bushes (where its mother was) and i thought everything would be ok.But, when my mom got off of work, she found the poor thing with its limbs spread out,on its stomach, with blood found at its mouth.It was also breathing very fast.She immediately brought it in the house, and laid it in a towel.At this moment, it is still breathing fast, but it appears to be trying to move.I know for a fact that petey had gotten to it,but i have no idea if it is bleeding internally or if the puppy just scratched it on the mouth!!!Also,it is not a possibility for us to go to the vet due to money values. WHAT SHOULD I DO????