When should I start saving for my child?

I don't know how wise you are in financial handling but there are people who start saving for the child from the very day the child is born. And here I read someone has the view that one must start saving even before the birth of the child. And that I must say is so intelligent. I wish I too was this wise. But now I too feel is that whenever you come to know about your pregnancy one must start saving some money. Or sooner you start saving money for the baby, better it is, as you would realise its value when he or she would grow up and that little money which you save now will be such a substantial thing at one point of time.