I hear you BUT the reasons for any method of contraception failing are always the same - education, wisdom and responsibility. The bottom line being that some are incapable of following guidelines. Obviously, I'm talking about relatively non-complex methods of control, such as the pill, condom, withdrawal, etc.

Why is it that some natural methods have a 100% success rate with some individuals and not so with others?

I can't comment on what the RC dictates but can say that anyone who reads the bible and understands it can clearly see that sexual intercourse is not just for procreation but is a gift from God designed, among other things, to draw couples together as an expression of love. Again, love has a broader meaning within this Christian context than it is commonly but not exclusively used outside of it.

I WANT TO MAKE IT ABSOLUTELY CLEAR: THAT WHILST ALL FORMS OF CONTRACEPTION HAVE SOME RISK, THE SO CALLED NATURAL METHODS OFFERS ALMOST NO PROTECTION IN THE SHORT TERM AND EVEN LESS IN THE LONG TERM

That is true with some people and with others it affords a very high degree of protection. In order for something to work it must be implemented correctly. I've seen remnants of various things in strange locations in women's bodies that left all involved in the procedure, in no doubt as to the competence of the indiviuals involved.

Btw, that your friend got prefnant all those times suggest to me that they did not limit themselves to sex within the so-called safe periods. Plus, i think we all know that the safe period varies from individual to individual and oftentimes far more so.

I think even 1 person dying during an abortion is 1 too many. I don't judge anyone having an abortion as its not my place to and i'm not in their shoes but each of these deaths involved 2 persons and is thus doubly saddening.