Lots of puppies?

Last night we were over at our neighbors talking and Topsy (our Jack Russel) was with us. Their dog was an un-neutered male Shitz su (sp) and Topsy is in heat. So we left her there for a few hours and made a deal with the male's owner--they can have the pick of the litter if she has pups. Our kids are VERY excited that she might have pups. ARE WE READY FOR THIS????