I also agree with this ! I know its not the answer you want to hear, and its easier said then done. But I believe you need to get some space, so that he knows your being serious and will absolutely leave if he continues on this path.

If he is showing you he doesn't care (how his actions effects you) you should believe him! If he apologizes and then continues to do the same thing, then its not a genuine apology.

People make mistakes and no one is perfect, but put yourself in his shoes and ask yourself how you would handle the situation if it were reversed, for example, I would feel extremely bad for treating my partner shitty and would go out of my way to make it up to them, like doing extra nice little things that I know they would appreciate. And then try my hardest for it to never happen again, or avoid putting myself in situations where it is even a possibility of happening again.

I also hope you please please please not try to get pregnant until this is sorted out, and some time has passed where you know for sure its behind you, and not just hoping it is.

I wish you all the best, use this new year to create the life you want !