I'm sorry, but I think your DH needs to realize life isn't fair, and the most important thing is that you both do what is right!
Was it *fair* when you had morning sickness, blew up to the size of a beach ball, and had to handle the pain of birth? Is it *fair* that you are the one that has to sit and nurse for hours while he can get up and do whatever?
I stay home, and I think there are days when it is not *fair*! My husband does not cook, clean, etc. and he spends his free time playing his guitar and goes to bed when he feels like it. Unlike me, who cares for the kids and has to get them to sleep, etc.
But, we are happy and this works for us. I am glad I do not have to get up at 6:30 and be away from my kids all day, like my DH does. There are postives and negatives to both situations, but that does not mean it is unfair, just different.
Honestly, if your DH had to stay home and manage it, organize it, remember apointments and birthdays, clean, do laundry, cook, shop, keep dd happy, etc, I bet he would think *he* had the hard job, and that you had it easy being able to leave every day, and that *that* wouldn't be fair.
Sorry if this sounds harsh, but jeez. This is "natural mothering" and nature gave you the uterus and nummies for a reason.