Hello to you and delighted that you have found us. Much of the terminology to describe models of childbirth is slippery because different people use the same language to mean different things or, to be frank, concepts were co-opted. For example, in the twenty odd years that I have been involved in birth issues (and some of them have been very odd), "natural" childbirth shifted from meaning "without medical intervention" to "without pain medication" to "not cesarean surgery."  The Lamaze International website has a page that explains about normal birth as we use the term with links to the 6 Care Practices that Support Normal Birth. Check it out. I look forward to your posts.

-- Henci