Well, the proof is clearly in the pudding but the tip was, I trust, the mindset. "Life" isn't just a word to the Church. It is the very work of God. To reject it (or the process that initiates it) at any stage is to choose death.
The rest follows.
This, obviously, in the context of matrimony, which is so clearly designed for the primary purpose of building the Church by creating social building blocks and child rearing.