I’m just fed up of not feeling good enough to be honest. Even his tone of voice when he makes a comment is just awful - and if I mention it to him it’s like he doesn’t even know he’s done it
This is called crazymaking.
It is what narcissists do to the people trying to have a relationship with them..
@Applesandapear, you can't 'solve' this.
There is no magic formula that will somehow penetrate his brain or his heart and give him a personality transplant. Stop trying to explain to him what basic, civil human behaviour looks like. He doesn't want to know. What he is doing is working for him exactly the way he wants it to. If you are kicked to the floor, emotionally and psychologically, then he is the winner. That is what he wants.
Get used to that feeling of never being good enough, because he is going to keep on doing this to you as long as you are together. Afterwards he will fit you into the narrative you have heard about the two previous women he has probably come close to destroying.
I say 'afterwards' because your relationship is doomed and you should get out before he grinds you into a shadow of your former self and rendering you into a shadow of the mother you could have been if he hadn't sucked the life out of you.
Please do not fall prey to the delusion that because he displayed X or Y or Z pleasant personality traits before you got pregnant, or that because you still see flashes of that every now or then, that you will be able to coax the good back. The pleasant stuff was bait for you, and it comes out occasionally to keep you dangling. What this man is seeking in relationships is the chance to give himself a feeling of complete control over someone else, the good feeling he gets from dictating to someone else, the feeling of power he gets from telling someone what will be discussed and when
.
You are in the relationship for a mutually life enhancing experience of giving and sharing and loving. He is on a power trip.
Please do not kid yourself that you can change anything about this man. He has had two chances already to learn from women what is and is not acceptable and he will go through several more before he ends up alone and bitter in a spotless house.
A question for you - do you see him actively parenting his older child?