Is Daisy spayed? Suddenly digging holes all over might be hormones telling her to dig a den ready for pups.

I remember when our Mist was young, still growing, and she'd dig holes and put my dads plant pots in them. When I read about another dog doing exactly the same thing, it turned out the plant pots were subtitues for pups and that the bitch might even be producing milk to feed her plant pots with. Of course, such dogs tend to turn out to be great mothers...as our Mist did....it was still funny though...plant pots as pups...