Should I leave his ass or give him another chance for the millionth time?

I am almost 12 weeks with my 3rd child, mine and my husband's 2nd together. We got into a pretty big fight all starting over where the hairbrush was and me making a point that he says things and then immediately tries to say he only said this or that, which I'm not that crazy I know. Ultimately I told him to stop touching me or trying to hold me still( I have alot of past trauma from an abusive bf that I have shared with him in fine detail). He spewed venom and said that he would touch me if he fn wanted to, to which I told him he could get out of my house I wasn't taking that. That's when he went out to his truck only to return and demand that i look him in the eye and really listen to what he had to say. That's when he told me he wanted me to get an abortion! He wasn't going to be raising another bastard child or something of that sort(he has an almost 18yr old that he only pays child support for and dosent see). I was so super upset about this especially because of my situation, I wasn't planning on having anymore children and just set out a few months ago to run my own business. Kinda bad timing in my books and I was also planning on divorcing him, found out I was expecting a day before the final signing, which ultimately I decided maybe meant I was meant to give him another chance like hed been begging for since seeing the divorce papers. So for like a split second this option was put on the table, mostly fueled by lots of uncertainty and hormones, but ultimately I could never go through with it as I wouldn't be able to live with myself. So for this to come out from him now after I've embraced my new baby to be, has sent me aspiring down the rabbit hole of pain and questions. He says he's so sorry and I'll never know how sorry he is and that he never meant it and it was said out of anger...