I don't have any baby dolls or anything that is explicitly maternity. That said, I did get asked if I was pregnant a short while back. It actually made me tremendously happy, but that is another story...
I've got a couple of empire waist things, one of which is a dress that I think looks a little odd because of the high waist line. So, I usually wear a waistcoat with it to disguise the fact that it's empire.