I was told that the character Andy Garcia played was aborted in the book.
Oh, sorry, I thought you were talking about Michael’s kids. Yeah, you’re right. Lucy Mancini did abort Sonny’s kid in the book.
On a related note, I recall that Mario Puzo named the novel’s abortionist character Dr Jules Segal after his former colleague, fellow author Jules Siegel.
https://en.wikipedia.org/wiki/Jules_Siegel
I do think that with the abortion storylines in both the novel and movie, Puzo was making the point that abortion was homicide analogous to the murders of convenience carried out by the gangsters.