Not good the way you describe one of your girls as a tea cup, it's the way back yard breeders talk
Presumably if she is "tea cup" you won't be breeding from her?
Just something to think about
Edited to add ~ I've just had another look and see that you are using one of your studs to breed Yorkie cross Chihuahuas...Very sad and again not what most people would expect to see on the site of a reputable breeder I am afraid.
Just my thoughts...