Dear Editor, I found your whole site to be very insulting to the authority of the Church and the Pope. Jesus himself gave authority to Peter, the first Pope. The Pope is infallible in all his teachings on faith and morals because his teachings come from God working through him. The Pope is not infallible in all his teachings. Only a few teachings have been declared infallible.
Papal teachings are nonetheless authoritative, but some have been reversed through history.
Birth control is simply taking God's decisions into human hands. NFP is definitely different simply because it is taking advantage of a very natural, God-intended form of avoiding or achieving pregnancy. They are obviously meant to tell a woman when she is fertile to make it easy for her to avoid or achieve pregnancy according to her financial, physical, and mental state at the time. When things like birth control are allowed by the government, people seem to want more freedom to control life. After birth control, abortion was eventually accepted.