Question: Why didn't she ask the cops to tell the student she was pregnant with his child?
Answer: Same reason for her actions in the entire episode. She wasn't thinking straight. She recently had brain surgery, her husband left her, she lost her step-son, and now she finds out she's pregnant with a minor's child. All put together spells recipe for an emotional breakdown where no-one can be expected to think straight.
Answer: Whether or not she was arrested, the court could order an evaluation regarding her fitness as a parent, require counseling, anger management courses, alcohol rehab and AA meetings, be under CPS supervision, etc.
raywest ★