Many years ago I wrote a post on survey data from the Guttmacher Institute on use of Natural Family Planning. To quote from my lede: The report finds that only 2% of Catholic women use natural family planning, and that this number does not vary significantly when frequency of mass attendance is taken into account. The figure rises to 3% among married Catholic women. This provoked an interesting discussion going in several directions, one of which was challenging the numbers... Read more