Pay attention to what I am continually proposing in my comments. PERSONAL INTENTION IS NOT THE DETERMINANT OF MORAL ACTION. You continually propose that it is.

Here is how it works.

NFP is OBJECTIVELY different from contraception. With NFP I am having sexual intercourse with my wife with nothing artificially present that we have placed there to stop procreation. With artificial contraception there is a condom or IUD or diaphragm or spermicide or a pill working so procreation will not happen as a result of a choice that we have made.

With NFP no matter my intention, even in extremely low fertility moments where I am trying to avoid children, I am still engaging in an act which is open to life by its nature.

With contraception, no matter my intention, even in extremely high fertility moments where I might hope the condom breaks and we get pregnant, I am still objectively trying to prevent pregnancy.

NFP is not contraception. Objectively. Like according to reality.