Hello and
congrats on your little girl!!!!

I'm not a breeder, but as a pet owner, I would strongly rec. having your girl fixed. It is much healthier for her and it is better to leave the breeding to those who have researched and are doing it to better the breed.
I volunteer for a yorkie rescue and it is sad how many of these little pups end up in rescue a year or two down the road. Too many of them are being bred already. Please consider the safety of your little girl, the future of the breed, and all those little homeless yorkies and get your girl fixed.
Anyway,
welcome to yorkietalk!!! I applaud you for seeking out answers before you make a rash decision. I hope to see pics of Dulce soon!!!!