I agree with this, I have a 7 month old daughter and I am literally running on empty. I pick up colds a lot more often now, but, seeing her smile makes everything worth while. Be upfront about it, you'll want to work for a company that sends you a card with Mothercare vouchers when the time comes, not a company that makes you feel bad for wanting to support your family.
To the OP, your username is interesting given the context!