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					Originally Posted by debbiesray   Is there such a thing as a yorkimo?? | 
 
  Yeah, it's called a mutt/cross breed/designer dog/mix.
 
  
Honestly, the negative comments are not needed.  You came here asking for advice and that is what you are getting.  Sorry if you don't like the answers  Accidents aside, your small dog was bred to a much larger one which is dangerous and possibly life threatening.  Period.  Would you rather everyone lie, pat you on the back and offer up congrats?  I think not. 
I agree with everyone else.  Bite the bullet and have her spayed, thus aborting the pregnancy.  If you want to strictly take the advice of your vet--which I wouldn't blame you--go ahead, but if that is the case, why even post this here to begin with? 
Good luck.