Ella is still being picky over what she eats. If she wasn't feeding puppies, I would just say - you will eat next meals. Havanese do that at times. The more you indulge them the more picky they become. It is unfortunately true.
I have to say they do not mind the scale. Perhaps they will when they get to be a couple of days older. Think about it. They can smell. They can touch but they can't hear or see yet. Ears and eyes open at the same time. I can't wait till it happens for all 3 litters as it is when the fun begins.