Please could somebody help me with the name of this book? Pleeeeaaaasssseeee!

I read this book about a teenage girl who is an orphan and stays with a foster family. She becomes pregnant. She tells her foster parents about this and they ask her what she plans to do with the baby. She decides to put up the baby for adoption and discusses this with her boy friend. They have this argument and break up. The story goes on with how she carries the baby to full term and then gives it for adoption after it is born.

Somebody please please please tell me the name of this book!