How does the author use foreshadowing in Look Back in Anger?

"If you could have a child, and it would die...if only I could watch you face that." Look Back in Anger, 37.

This quote, spoken by Jimmy, demonstrates his vicious anger towards Alison. The quote is an example of dramatic irony as well as foreshadowing. It foreshadows future events in the play in which Alison loses her pregnancy, Jimmy's child, to miscarriage.