Welcome to YT! Your babies are beautiful! And two, sheesh you are a brave brave woman. But who can resist those faces?
I've been thinking about getting another pup myself, but I think my husband will hurt me!
I know some posters above said this already, but it's so important that I think I need to mention it again. Although, we love our babies and always want to be surrounded by them and want to share their personalities with others, breeding is a royal pain in the back end, and can be very deadly to our babies.
I know you said that you got your babies from a pet store, my Gizmo is from a pet store. And, speaking from experience, pet stores get their pups from Backyard breeders or puppy mills at a very young age. And even though these pups come with health certificates, or a one year guarantee, many times, these pups develop social issues, digestive issues, and developmental issues from being taken away from their Momma so young search on some of my posts and see the heart ache and money that I've had to shell out due to Gizmo's issues.
Breeding toy dogs is such a challenge. And when you don't know your pups lineage, or don't have a history of their parent's genetic testing - like all reputable breeders have- many times pups can be born with genetic issues and conditions that make breeding very heart breaking. Besides praying for healthy pups, many times Yorkies, due to their size, need c-sections for delivery that can run a minimum of $3,000 not including pup care afterwards.
I really welcome you to YT, however I ask - heck even beg - of you (coming from one pet store dog owner to another) to have your babies fixed, and not risk their lives to breed. Breeding is a tricky hobby, and I as well as many others, leave it to those who are experienced.
Spend the money that you'd have to set aside for genetic testing, possibly vet emergencies, and c-sections on spoiling your two babies!
Please reconsider, and post more pictures!