backagain39-
1.) WELCOME....I didn't even realize you're a newb! YT can be very entertaining and informative on our breed.
2.) WHAT'S HER NAME GONNA BE? Sounds like you and your daughter have already chosen.
3.) Not being able to get both-since you believe in fate-is actually a POSITIVE rather than a negative. I'd never recommend raising littermates together (regardless of sex) in the same household. Especially w/ children. The dogs often bond to one another and since they understand one another more readily are more inclined to be w/ each other than the family. There are many other behaviour problems that can arise w/ doing this unless you're experienced enough to cut those off as you see them arise. And why bother? Just get your girl, and enjoy putting all your focus on developing her into that perfect Yorkie you've no doubt always wanted (or your daughter).