The teenager discovered that she was pregnant with the child of Penn Graham (Christian Clark), who has since been killed.
Nicole will hand the baby over following Marilyn's ongoing support throughout her pregnancy. However, newborn baby George will struggle with being apart from his biological mother, the Daily Star Sunday reports.
A show insider said: "Nicole tries her best to stay away but George needs her. And although she's finally got everything she's ever wanted, Marilyn gets obsessed with Nicole having the power to take him back."
Tessa James, who plays Nicole, announced that she was leaving the soap last month.