Advice for homeless child

My granddaughter is homeless and newly pregnant. None of our family cares for her boyfriend. He is very manipulating. She has some abandonment issues and seems to just follow whatever he says and is the reason she left her job, lost her car, and became homeless in the first place. I have raised her all her life even though she now has a decent relationship with her mom. We had a falling out when she continued to ask for money but wouldn’t follow any guidance. I told her I couldn’t continue to enable her so she had to stop. She has had her phone and wallet stolen so we have no way to contact her. I’m so worried that she is going to continue to make all the wrong choices and bring a child into this world that she can’t care for with a father that won’t stick around. I don’t know what to do. Does anyone have any advice. Distraught Grandma.