Her excuse is that this pregnancy is very tiring, and with the care of our 6 month child, it takes a great deal out of her. I am not in a position to hire a nanny, nor would I want my children raised by one. Brady Oh, ye husband of much filth. Men think that pregnancy is just something that our bodies do while we're not looking - that we can continue on with normal daily activities while growing a little person in there. This couldn't be more false.
Pregnancy is incredibly hard work.
There are no words for the mind-numbing fatigue and nausea that a lot of women experience. I can't imagine adding the care of a 6 month old child into that equation. If so, your wife is doing the most important job of all. Give her time, honey. She will eventually begin to once again resemble the woman you married, but in the meantime you need to be a little more forgiving and helpful while she builds your second child.