Then stay and live in fear of this happening to you again or to your child next time.
Or call the police and get him out at least for a night.
Please don't blame the victim who is still in shock for acting like a person in shock and not jumping to do what random people on the Internet are instructing her to do.
My ex husband did something similar. Luckily no children, but it was in the middle of me going through chemo so I was feeling a tad vulnerable. I stayed in the house, with him, while I sorted my feelings out. We even slept in the same bed and I cooked for him.
It was such a bizarre and surreal time of my life because I knew he'd crossed a line and we were over, as did he, but we were in some kind of inertia for a good couple of weeks.
I did leave him. It wasn't even the first time he'd been violent because we all, like @BruFord think that the first time js a one off and I was a complete and utter bitch to him when I had cancer. However, in most cases, unlike @BruFord they do it again. Then you knkw you have no choice but to put the bomb under the kitchen table and blow up,your life....but doing so is another matter all together.
I wouldn't put too much hope that the police will be helpful. It may just be my bitterness talking, but they did fuck all when I reported my husband. They did, however, joke with him about having a hormonal wife. I was going through an early menopause because I'd had a full hysterectomy due to cancer.
OP good luck. Thinking of you tonight xx