It happened. The record gurus covered it up.
She recently said that her song “Sara” is about one of the children she would have had with Don Henley. “Had I married Don and had that baby, and had she been a girl, I would have named her Sara.” —Stevie Nicks
https://www.patheos.com/blogs/bristolpalin/2015/01/stevie-nicks-says-song-sara-is-about-1-of-her-4-aborted-children/