I'm so, so sorry for what you are going through. I've been having the all day sickies, too and it's really hard to be happy about this PG right now. I can't even fathom how I'd make it through the day right now if I had another child to take care of. Just do what you can right now and let the rest of it go. Maybe one of your friends can come over w/some meals for your DC or your DH could make some things the night before that you can just warm up for her.
So many hugs for you, I KNOW it's not easy!