Congratulations to you, too, then!
I very much understand having little ones in tow. I used to have Katy holding one hand, Tommy holding the other hand, a front-pack carrying Jon, and a back-pack carrying Ben (the twins) and off to the grocery we would go with me pushing the cart! At that point there were only 4 and they were all under the age of 5 -- so I understand completely! LOL
The walks would do good for both you and Josie. Perhaps hubby could find a little time to let you get a walk in each day -- which would also give you a little break from the little ones and let you breathe. I used to love the little break I took to walk around my neighborhood after dinner while my hubby (ex) did a little "baby-sitting". For me, it was exercise as I needed to lose a little "baby-fat" -- but I sure enjoyed it. I'm sure Josie will be a good listener, too!