In it, you keep saying the same things to him hoping for a different answer. You keep asking when he is leaving, why is he being like this, I didnt plan this pregnancy. He is not hearing you.
You could have simply said, I will take care of our children like I always have and leave the room.
Frankly, I think he is having a breakdown of some sort. And I am a little frightened of the things he is saying.
Please do not engagae in any conversations like this with him.
It is not good for you or the situation.
You keep basing your actions on him. YOu do what you need to do for your and your children regardless of what he is saying or doing.