http://www.ytca.org/breeder3.html#FL
Check this out..This is where I found my yorkies breeder. I pulled up the breeders in FL section. There are a ton. Plus these breeders stick with the standard and have to follow code of ethics of the YTCA. In my experience, I found the breeders on this page a lot less pricey than pet store or BYB. Couldn't hurt to look and find a breeder.
By the way 3 days is nothing. Your new pup could go 3 weeks with no symptoms and then BAM it just creeps up on you. Most of these breeders give a 1 year health guarantee.