Just had a conversation with my friend about her husband abusing her, she is pregnant what should I say or do?

Tell her to get out before he takes a gun and puts it to her head or her child's head, or puts her in the hospital with bruises to the brain, etc... like my ex did. It started out the same way hers is going. I finally left when I realized that he would actually kill my child to get to me. Tell her to get out now while she can still walk.