I think it was a movie with Michelle Pfeiffer. She has a son and she wants to raise him by herself. She is overprotective and if I remember it correctly she (spoiler) attempts suicide by sitting in a car in a garage with running engine, together with her son. However someone walks in, just on time to save the boy, the mother however dies. Other things I can remember is that she buys a house while being pregnant and throwing up on the street and her painting the room for the child. I can't find the title of the movie anywhere, so if someone here could help me, that would be awesome!