There’s so many reasons NOT to get overly excited over every little thing that Pope Francis says. First of all, he’s just expressing his own opinion–not everything that any pope says is actually “infallible” unless explicitly spoken “ex cathedra” (more on that here). Secondly, the media is always misconstruing what’s being said! It’s useless going into a frenzy unless you take the time to really read the text and context of whatever the Pope says.
In this case, was he saying we shouldn’t be open to large families? Was he saying that NFP should always be used to avoid? No, he said that the Church doesn’t require people to constantly have children. He was saying that we are human beings, called to exercise responsible parenting. In context: the Church doesn’t say the poor in the Philippines have to have children–then he adds that the poor in the Church often see children as their greatest treasure. It’s beautiful!
Once again, Simcha Fisher has provided great explanations and some of the full text to provide context.