Let it go. Basically, I do what I can do. My house is just now starting to look a little better as Brian is 6 months (Nate 4 years).During the child's first few months, it's seems almost impossible. We are so tired due to late night feedings, feeding all the time (especially if you are breastfeeding), hormones going crazy after pregnancy, etc. My expectations of myself had to change. I decided not to even attempt supermom because I would run myself so ragged, I wouldn't be able to be a good mom. I would say just continue to focus on your child. She will grow up so darn quickly you will say, "Where did the time go!"
My husband didn't understand truly how difficult it was to get everything done until he had to stay home with the kids one day. I think I was out of commission-very sick. At the end of the day, he finally told me that he understands why the house looks the way it does - it's impossible to get things done because of the constant demands.
If your husband is having a difficult time understanding - get sick LOL j/k