All four of our children came into the world by C-section. In all good Christian conscience, I could not ask more of my wife.
Then again, I'm not Catholic.
Still, I concur with the general tenor of this post, that the norm is to have as many children as possible, AND home school them for the glory of God.
Having had one C and one natural birth, I would chose the C-section ANY time!
That is not the tenor of this post. God has blessed you with 4 children (all beautiful in His sight) and the medical expertise to deliver them by C-section. You and your wife are no doubt grateful to Him for these gifts in your marriage.
The tenor of this post is to point out that the Early Church Fathers were in full agreement with God that children are a gift and preventing pregnancy should not be accomplished through artificial means.