Surrogate disaster?

Don’t know what else to say but I agreed to be a surrogate fir a friend. We did everything and now 20 weeks and the couple broke up and now she calls me and says she doesn’t want the baby anymore and told me to just schedule an abortion. I’m at a loss right now. I don’t want to do it. I don’t know what to do. I don’t think I can do it. What do I do?