Hi and welcome to YT. Sorry I have no experience with heats. I was a little confused about what advice you were looking for is it in regards to the "silent heat" or do you need help regarding steps to prepare for a whelp with a pregnant Yorkie. Glad you caught the surprise before ahe was re homed.
__________________ Carolyn  Buster Brown  
"The happiest people don't have the best of everything, they just make the best of everything." |