Irene,
I will say alittle prayer for her..
There has NOT been one time that I have not cried when I have either purchased or kept back a female/male for show or breeding and then had to place them into a loving forever pet home because of their size or health issues.. It NEVER gets easier.. They become a part of our family and our home..
My Trianna is a smaller girl at 4.4 lbs.. She is very compact, but when I had her x-rayed by my vet he said she had the largest pelvic opening of any female yorkie he has ever seen! My vet does see alot of yorkies, there is another show/breeder here that also takes her yorkies to him.. So there is HOPE!!
Keep us updated on what you find out..
Melanie