I have to say that our families tend to be the worst when it comes to our animals. My inlaws have a cat they absolutely treat as family and before that a dog who they nursed into old age until he passed and they were/are family to them BUT when it comes to our pets they treat them as totally dispensable! I really don't get it. She won't let our pets into her home but gets upset when I chose not to come because of it, all of her plans revolve around the cat but had no problem telling us we should get rid of Rosie rather to try to get her over to the UK with us.
I have just come to the conclusion that in one ear out the other with them and anyone else who doesn't get it. Don't let them get to you and just enjoy your new baby and your fur babies.