You certainly have a lot on your plate - any one of things - move, working, small children, can be challenging. Adding a cancer diagnosis on top of them I am sure must feel overwhelming.
I am glad you reached out here.. Finding a way to function day to day may be more challenging in these early days of the diagnosis. You may find you settle in to a routine at some point. That's not to say it will be easier but might be better able to foresee and plan.
You have heard from some excellent members already and I have no doubt you will hear from others that Brighty has tagged.
You will hear also to try to find time for you to get support as well. You are going to likely need support around you, as well as respite .
Take any offers of help and support. People will want to do something so handing out specific tasks helps you and makes them feel like they are doing something.
We have a group on here called Living with Advance cancer where you may find some useful discussions ( Groups > Living with advance cancer) . As well there is booklet for both you and your husband that lays out some ways to help navigate this. The link is here: http://www.cancer.ca/~/media/cancer.ca/CW/publications/Advanced%20cancer/32043-1-NO.pdf
Continue to reach out. We are listening