Looking for movie title

I’m looking for a movie title … from what I remember in the movie, a young girl meets a wealthy man and he asks her to come to his home. There, him and his wife ask the girl to be a surrogate (or maybe provide her eggs) so they can have a child. The young girl considers and ends up getting pregnant, and then runs away. At the end of the movie she calls the number the man gave her on a card and the wife answers and says “….. is this you?”