did anyone mention that the bloody spots on her vagina could be a heat cycle. dogs have a period just like human women do. if she's not spayed that could be it. it's prob. flea dirt or some problems with a UTI or yeast infections. whatever you sprayed on her if it were Hartz that might explain the vomitting.
you need a vet ASAP get a care credit card and pay it off as you go, they approve almost instantly and you can use it without having your card yet.
www.carecredit.com
most vets now accept these and they have payment plans just like a credit card.
get help soon or find another person/shelter to help your baby before it's too late.