Your husband can't take any time off from work?
I really think you should look into hiring someone for at least the first few days. I know I just had one baby to care for and I was afraid to carry her up and down the stairs.
At the very least make sure you are settled on one level of the house before your husband leaves for the day. Have diapers, food, sleeping areas, etc. Have plenty of easy to grab snacks and meals for yourself and your toddler ready to go. Have lots of entertaining games and toys for your LO to play with. And don't feel bad about letting her watch TV. Let the house go for a while or ask your husband to pick up the slack with any house work.