The few people who know we use NFP assume we have a large family because NFP doesn't work. We have a lot of kids because we chose to NTNP, not because we're playing roulette and "lost". Our children are blessings from GOD and not proof that NFP doesn't work.
It is funny, though... several years and a few children ago the comment I would hear is "You're done now, right?" Now it is "when are you having another?"