If by "do" her, you mean have her bred, typically it goes 2nd heat and 18 months old.
Have you researched breeding her to make sure you know what you're in for? Breeding Yorkies can be much more complicated than breeding larger dogs, as there are more risks involved for the mom and pups.
This is a great place to come and get all the info you need!
__________________ Proud Mommy of Gavin, Ethan, Morgan, Nia, Olivia, and Kiana and baby #7! Also Mommy to furkids: Cleo ,Lola, Lilly Appletini, and Diesel.  and Sunny, Ethan's Golden therapy dog in training. |