This article shows that NFP is not at all the same thing as contraception. There are some Catholics who believe that NFP is just another form of birth control, that there really is no difference between practicing contraception and practicing NFP. But couples who practice NFP typically have large families while those who use artificial birth control have one, two, or three children at the most. And while those who practice contraception are never shy about making statements like “we’re not having any more kids,” or “we’re all done having children,” and often at a young age, you’ll never hear couples who practice NFP making statements like that. Finally, while couples who practice contraception often end up getting divorced, couples who use NFP and/or have several children rarely do. The two things really couldn’t be any more different.
If they really believed that, they would use NFP, which is free, always available, instantly reversible, and has no potential health complications.
Excellent perspective, especially on the divorce issue. Couples who work through having children by abstaining grow to love each other and respect each other much more than those who contracept.