God would never give a vision that is contrary to His word, or His purpose. Natural family planning is always in the context of marriage. This is so people can maintain intamacy in a responsible way. There is also no harmful side effect that comes with it. This is to maintain a stable atmosphere for the raising of children. I know how God thinks, because He spelled it all out for me in a Book. We don't have to guess. Your "what ifs" aurguments are a compromise with the world, and a repete of Planned Parenthood propaganda. I would suggest you throw Planned Parenthood literature in the trash, and spend more time in God's word.
how do you know? God thinks in mysterious ways rite? how do you know?