"NFP?" She asked, grinning mischievously, "you mean 'Now I'm Flipping Pregnant?'"
She walked away chuckling to herself and we stared at her retreating form, mouths agape.
What could she possibly mean? Obviously she and her husband weren't 'doing' it right, because NFP was, we knew, the most perfectly-crafted and money-back guaranteed way to ensure a happy, healthy and low-stress marriage free from the perils of domestic unrest and discontent.
In other words, we had it all figured out.
And then we got married.