Goodness!

Sophie was small but not that small when I got her!

I think I would call a vet ASAP--even if it's just to ask for suggestions. I would also seriously consider taking them away from their mommy. It sounds like she's a first time mom herself --but the blood coming out of the nose sounds like there is something else going on.

Fingers crossed for you, Momma Bun, and the little ones.
Please keep us up to date!!