She has at least two children with Carlo. When Carlo beats her, she is pregnant with her first child. Years later, we know that she has Michael Francis Rizzi, who is baptized by Kay and Michael.
Exactly, SB!
Plus, Connie had been married at least once after Carlo bought the farm:
--The novel states that she "filled her bed" with a Corleone family employee.
--In GFII, Michael says, "The ink on your
divorce isn't even dry.." and yet she's running off with Merle.
She might have had more kids that we didn't know about.