I think there is a critical difference between "reproductive life planning" and "preconceptive care" though. The problem that the guidelines were drafted to address was that there are one hell of a lot of kids that are born with problems, and a lot of them were unplanned. The problems can range from physical problems for the mother during pregnancy to special neonatal needs and even to life-long medical requirements for the child. "Preconceptive care" is aimed at reducing some of these problems. "Reproductive life planning" would only address the case when the child is planned. It is a part of preconceptive care, but not the same as.

I don't doubt that a lot of thought went into the term. I suspect there was no joyous huzzah at the choice but a resigned compromise. Why? There really isn't a single word or simple phrase that refers to women who are biologically able to become pregnant. I can understand that it sounds like conception as the eventual outcome is assumed by the term (and apparently for the vast majority of women, 85%, pregnancy happens at some point).