Would you leave?

Would you leave a partner who snaps when tired/annoyed and calls you things like a mut? Whilst heavily pregnant. It's so much more complicated than that but I'm scared to stay because he's hard to talk to, snaps all the time and tells me off, he does a lot for me (because I'm heavily pregnant) but I'm so stressed and walking on egg shells. But if I ask him to leave I know he'll make my life hell, he'll tell everyone I'm mental and it's all my fault, I'm scared he'll try dragging me through court to take my unborn child and I'm scared that when I'm struggling he won't help because he'll say that I chose to do it alone. I just don't know when enough is enough. I'm 26 but I feel like women are so empowered today (which is great) that relationships are walked away from and given up on. Do I do that or do I work through this with him? I just need opinions really.