`:::::Whistling is right on our different philosophies being a source of conflict on other articles we both edit.  But in this article, it's not a question of whether merging or having seperate articles is a better editorial decision: it's a question of what the sources say.  :::::The statement on Singer's ``educational quiz`` certainly makes it sound like she defines fertility awareness as charting both mucus and temperature, and mentions the Ovulation Method as a related but distinct method.  Whistling is right, though, that a different page on Singer's website makes it clear she is including the mucus-only methods within her definition of fertility awareness.  So this is one source for that position, and I support including it in the ``terminology`` section of this article.  :::::I am not following how Singer's position should override the position of the World Health Organization , Contraceptive Technology , and Planned Parenthood .  These are all authoritative sources, they agree with each other, and I see no reason to exclude them from this article.           `