I was on the internet doing some research because my dog nipples look like they are getting bigger. Now she has already had her first heat, which was an experience might I add, and I saw it then. But now they look like they are sagging a bit. So what I came across was called a "False Pregnancy", which is when a dog think they are pregnant. Their bodies will even go through the physical changes. So my question is, have any of you been through a false pregnancy with your dog or is this a normal change she's going through because she's getting older????