Should I stay or should I go? (Long paragraph!)

So i’m 6 weeks pregnant (Yay) but these few weeks have not really been the best. My morning sickness is horrible, My bd and mother had a huge argument, My bd said he didn’t want the baby but took it back a few minutes later. But what he also told me was he won’t even change any diapers when the baby gets here or even hold it. My mom said I can come live with her again and it sounds kind of nice right now. She’s the only one who has made this pregnancy any better. Or should I stay here with my bd and try to work stuff out.