I am sad to read of your difficulties and feelings towards your partner. I understand about being emotionally abused as I lived in that situation for 30 years. I welcome you to Beyond Blue and hope we can help you in your present situation.
But this does not help you at this time. My believe, endorsed by my experience, is that no one has the right to harm another, physically or verbally. We all get cross at times and say things we do not mean but not constantly trying to hurt the other. After many years of this I found I lost all my confidence and came to believe all my husband said to and about me was true. He still does this at times, though not quite as overtly as in the past. We meet at family gatherings which he is as much entitled to attend as me.
Tony WK has made several valid points about children growing up without one parent and grandparents not knowing their grandchild. It's a very sad situation all round. On the other hand you should not be expected to put up with abuse so that others are happy. I think this is the dilemma you are facing.
I am often told by the psychologist who helps me, to listen to my body. And this is good advice. It seems you have two difficulties. One is whether to move away from where you currently live, exchanging somewhere you are comfortable for the unknown. This is scary at the best of times. Moving towards the end of your pregnancy is even more scary. Perhaps you can consider staying put until the baby is born and then decide what to do.
The second difficulty is whether or not to stay with your partner at all. This is a harder choice. I suggest you see a counsellor from Relationships Australia, Lifeline or Anglicare and ask for an urgent appointment. You need some help to work through this situation. Do you see your GP for baby check ups. If not, this is another person who can help. They are usually very good at this sort of thing and if necessary can refer you to someone who can help.
To me, and this is my personal belief based on my experience, an abusive person does not change without a great deal of help. And usually has a big struggle even admitting they need help. You need to decide if your partner is going to continue treating you in this way and make a decision based on this. This is why you need professional help. I know little about your situation so I cannot presume to advise you.
Hope to hear from you.