Thank you Archie.

Yeah I certainly hope it was the airedale! I don't hold the breeders responsible for this though. I should make that clear. They genuinely had no idea that she was pregnant when they rehomed her.

They are responsible breeders with all health tests done. I know that my dog has a good hip score as I have her certificate. I did speak to the previous owner and she thinks that maybe it was her airedale and not her labrador that got to her. So here's hoping. She has been off her usual food so I have given her puppy food with a chopped up boiled egg which she wolfed down! I am keeping a very close eye on her and she seems relaxed.
Thank you for your help and kind thoughts.