Be Fruitful And Multiply - Its The Only Chance We Got!

Now theres a thought for ya. Over at Dr. Mohler's blog, he talked about birthrates and how they impact the long term worldview propogation.

So when God talks about children as a blessing. When God commands us to be fruitful and multiply. Are those just empty words? Are those commands and statements that can be ignored?

What role does "family planning" have in this debate? Is there such a thing as Biblical "family planning". I read a blog post recently called "The Contraception Conundrum". What are the macro effects of people deciding to "have one for me, have one for you, and then we are through"?

What about adoption? How does it fit into the picture as well?