The general sense I picked up from your entire post is "what can I do to make her happy?"... you serve her. That is what you have always done, right? You may not realize it, but the tone of your post is one of "help me please her".. and I bet dollars to donuts that she KNOWS that is the attitude you guys have toward her. That SHE is the one to be followed and pleased.
Completely BACKWARDS dear. All your problems will be SO much easier to solve once you take your place at the head of the pack. Right now, she is the pack leader. If you and your husband do not behave like the pack leader then she is lost unless she becomes the alpha. And bless her, she is like every other dog... there wasn't an alpha so she became it. They are wired that way.
Find a few episodes of Cesar Milan's Dog Whisperer (comes on National Geographic Explorer and you can order DVD's buy books, etc also) and watch them. Every episode has different problems with different dogs in differing situations... but almost every one of them boils down to the same general problem.... the dog is the pack leader.
When you take her on walks, YOU go out the door BEFORE she does. You make her sit before you pet her. You make her wait before she is allowed to eat. You only play with her when YOU initiate it (if she brings a toy and plops it in you lap... put it down and ignore her). You NEVER let her get in your bed. You make her work/show discipline (exercise, follow some simple commands) before you show her praise and affection.
There is absolutely no reason you should be resigned to your home being destroyed b/c she is "out of sorts" and jealous of the new baby. The new baby, right now, is a "threat" to your dog's alpha status... and that is why she is being so destructive... not b/c her routine is messed up or she is bored.
Please do not allow this to continue. Train YOURSELVES how to be the pack leaders (you have to view things from a doglike perspective.. they don't think like people do). Educate yourselves on how to lead. She will fall into line and you will be AMAZED!
Good luck.