My heart goes out to you. I couldn't stand seeing my daughter in that kind of relationship. Unfortunately, your daughter is an adult and you can't do much. She has to do it for herself and her baby. Hopefully, he want make it that far, but in the mean time she needs to take some steps to cut the ties, like change her phone number so the texting and phone calls can stop. But I don't know if she is willing to do that yet. You might see if there is some abuse hotline in your area that might have some counseling for her to help her get emotionally out of this relationship. Hope thinks turn out okay.