The Austin American Statesman has a great article on the issue and even quotes an Aggie Catholic, Alexis Dobson.
Here is a great snip from the article.
For David Taylor, the question of how best to faithfully plan families reveals "a fascinating examination of God's sovereignty and human free will."
With a pill, he said, people are in control. But "what does it mean to submit your physical bodies to God's sovereign care? ... God has given us power and freedom to exercise that decision. We can say, 'God, we're going to respect the rhythms you have given us.' "