Check this site out. It has some different links regarding financing your adoption. It even mentions unsecured loans.
Adoption Financing
If your friends and family won't donate money, how about some junk they just want to get out of their house??? Check out this website for a good idea, but you need to give yourself time, which I'm not sure you have...
Another option...
One more to check out:
Affording Adoption
I'm right there with ya in needing help affording it. Good luck!!