http://www.microsort.net/ 
That is awful. The whole idea is so "me" based it is sickening! Having children is not like shopping. You don't have children to accessorize your life with what you pick and choose. It is a privilege and you are called "blessed" when it happens to you.
It's not so much that you can point to a specific law against it in scripture, but it is a matter of the state of ones heart and faith in God that shows forth. Trying to wrest control of your life from God and his providence, trying to be sovereign in your own life when it is not your own. We have been bought with a price.