Hi Jennifer and welcome to YT!!! I'm in Michigan, too (Southeast). We have a very regular meet-up group in this part of the state!!
We also have several great Michigan breeders right here on YT - depending on where you are located. I know that SweetSophia (Shari) has two litters due in early May - she is at
Home of LuvStruck Yorkshire Terriers in Michigan
Breny and wrenee4 are two other Michigan breeders who come to mind, but I don't know if they have any litters expected soon.