That is a large litter!
I do pray that everything goes well for the new mommy.
Questions for the breeders on here that have been seriously breeding for a while: 
Does this happen often? Does anyone know this breeder with the 7 pups and only 3 total post from MS? It just seems unusual to me from reading about breeding for months now. And I'm not trying to be rude or mean, but I really wonder did just one Yorkie put out that many pups?