Ha! Here in the U.S. we have millions of babies born to mothers who weren't working when they got pregnant and who won't be working for years after they give birth. Nobody knows who the fathers are, but the babies will be taken care of by their rich uncle, Uncle Sam (aka taxpayers). Free food, free medical care, free cell phone, free housing, free utilities, etc. ad nauseum.
My belief is that anything over a month for mother or father is too much. It's like milking a sprained ankle for a month's sick leave. Get your asses back to work; we have millions of babies (other than yours) to help raise, and we need you paying taxes, not changing diapers.