I am in the same boat as you. We are moving next Saturday. Not just to a new house, but a new state! Argh! Hardly anything is packed, and I still have no clue how it all will get done in the next 8-9 days. It's a juggling act just to keep up with the regular cooking, laudry, etc...not to mention packing up the house! I just keep telling myself it will all come together somehow. Problem is, we have NO help right now. BIL is coming next Friday to help DH move the big furniture into the moving truck, but that's about it. At least when we get to the new place we'll have a ton of people to help wrangle the kids and unload boxes!
Re: feeling a little overwhelmed
Honestly the idea of packing up two girls and all of our stuff is the only thing that keeps us in this house.
Just keep thinking about how much you're going to love your new place. And this is a great time to get rid of stuff!