She should kill the husband and keep the child. Hopefully she can prove how abusive he was so she get off with a slap on the hand.
Not the best idea? Maybe an abortion would be the best thing if she does not want to leave him and does not want the child.
At some point she needs to stand up and say enough is enough. Leave and start a new life elsewhere.
Been there done that! My X threatened to thow acid on me, kill me and or have someone else do these things to me. I jumped every time someone pulled into the driveway for years after I left him. It took me years to "not be afraid" of him. I know where her head would be. They have a way of convincing you that you have no where to go. And as far a the authorities. HA! They aren't going to help. A women's shelter is another option whether she decides to terminate the pregnancy or go ahead with it.