Is having more than two kids being selfish?

Check this story - http://www.onenewsnow.com/Blog/Default.aspx?id=424030.
My husband and I have a blended family of six children- my first husband and I had three children, a daughter and two sons. My husband and his first wife had two children - a daughter and a son. And Randy and I have a daughter together- that's right, six kids... just like the Brady Bunch (NOT).
And it doesn't stop there - our oldest daughter has a daughter and two sons; our oldest son has three daughters and a son; our next oldest daughter has a son and a daughter. Our next oldest son is expecting his first child this fall. And that's not counting how many children our two youngest will have when they get married. Ten grandchildren so far, and still counting... and I love each and every one. Some of our children we got the regular way, and some came as a package deal (some people call that steps, but we call them bonuses!) We love our grandchildren, and we don't make any differences in them.
So this story really hit a sore spot with me- I get grief from all kinds of people (including a lot more Christians than you might imagine) because we have a large family.
Now don't get me wrong- I think it's totally wrong to bring children into this world when you have no desire to take care of them, and your only reason for having them is to add to the number of checks you receive from the government every month.
But I have looked through the Bible, and I have yet to find any scripture anywhere that says God punished people by giving them children- quite the opposite. In some times, God punished people by withholding children from them.
Psalm 127 says:
3 Behold, children are a gift of the LORD,
The fruit of the womb is a reward.
4 Like arrows in the hand of a warrior,
So are the children of one’s youth.
5 How blessed is the man whose quiver is full of them;
They will not be ashamed
When they speak with their enemies in the gate.

My husband and I are very blessed by our children- sure, they've messed up sometimes, just like we have, but I would not trade anything for them.
And even if you don't want to consider things from a biblical stand, consider this: the more children we have, the bigger the work force twenty years from now. As there are more workers, there are more wages to tax, and more services and products to sell.
And as far as there not being enough land or food for the people we have on earth now- that's a bunch of hogwash... if we're running out of food, why is the government paying farmers not to raise certain crops?

Oh, and as a balance on stopping life from beginning, check what Arlen Specter has to say about older folks who are at the end of their lives- http://www.onenewsnow.com/Blog/Default.aspx?id=426486 - nice huh?