Yes they can. It is called phantom pregnancy and that is where the dog's body acts as though it is pregnant but really is not. You should see a vet to be absolutely sure your dog is not pregnant, but it is possible.
Can Female Dogs Get Milk In Their Boobs And Not Be Pregnant?
Yes, they can have false pregnancies and can even be stimulated by a baby animal. Dogs have been known to produce milk for another dogs babys, even other species.
Yes if they are having a false pregnancy
No， female dogs can not get milk in their boobs and not be pregnant.
If the dog didn't pregnant his chest wouldn't have milk.
No ,they can not.
I don't know my dog does that to. It lays down and milks but shes not pregnant.