It’s still birth control.
And as such should be condemned as other forms are.
If preventing the conception is the crime, is murder, then it matters little how it is done.
Catholicism condemns Onan for his actions in avoiding impregnating his sister-in-law to raised up children to carry on his brother’s name. NFP is no different.
The goal of NFP is to enjoy sex without the *risk* of pregnancy, something die hard Catholics condemn as immoral and the cause of the collapse of western civilization.
Clearly many Catholics think that enjoying sex for the sake of it is wrong.
Here’s a clue. GOD created it and made it pleasurable. Based on the result of the Fall, and Eve’s greatly increased conception, it’s no stretch to conclude that God intended married couples to enjoy that kind of intimacy just because.
Use of bad terminology renders intelligent discussion impossible.
Artificial contraception is everything I said it is, and is wrong because of that.
Monitored fertility is everything I said it is, and is normal and natural because of it.
That which is condemned is artificial contraception because it rejects God's plan rather than working with it.
But you already knew that.