I think you first need to decide how to put the baby thing somewhere the fur kids won't get them. They are still young dogs, and of course have the urge to chew. They can't decipher good baby gifts from garbage if you get my drift
! Posh loves Merrick Flossies and bully sticks. I have small kids and Posh really loves chewing on Barbie legs and many of our Polly Pocket dolls are now teaching my children about folks who are disabled.
I really encourage the kids to pick up their toys, and if she chews the stuff, any stuff, it is OUR fault not hers. She isn't being naughty...she's being a puppy, which you have two of!
The flossies and bully sticks are really good because unlike rawhide they are completely digestible.
Also, can anyone (your husband) or both of you until baby comes take puppy/obedience classes with your dogs? I would highly recommend you do this, even if one of you has to go on two different nights. The dogs should preferably be trained separately. This is really going to help you learn to stop "bad behavior." Also, it is a great way to bond with your dog and it sets aside time where you are focused on them.
A well trained dog is well loved dog.
Lastly, do your dogs have free reign of you entire house at all times? If so, I think this might be overwhelming for you and for them as you prepare for your baby. You might want to think about having them be in the places where you are most of the time so they can be with their human and you can still make sure they're not getting into anything.
I do hope you have someone to help you. Two dogs and a new baby is a lot for you to do on your own. Best wishes to you! And, I hope you find something that works well for you. Keep us posted!