Well, while I haven't the foggiest notion where it came from, "falling pregnant" is a term I have known for a very long time and didn't even consider as potentially uncommon!

This explains a common term that I've heard over the decades but never quite understood - fallen woman. I knew what it meant but NOT why it was used. The light has shone.

As for my predecessors I have it on good faith that none of them were fairies and they were also far from immaculate!!