Idk what to do.

I’m so heartbroken right now. The man that I have been with for 4 years just beat the crap out of me when I was laying in bed with my son feeding him. It all stared when I asked him to get off his xbox at 2 a.m. bc he was waking are son. He started to tell his friends that I was his biggest regret in life. Me being me I opened my moth and said if that’s true leave. That’s when he lost it and punched me reputedly. I’m so scared and idk what to do. I can’t call the cops bc if I pick up my phone he will just take it and brake it. I have never seen him like this and right now I just want to cry but I don’t want to wake my son back up I just got him to sleep after he attached me. I’m sorry for rambling on just needed somewhere I could go vent that he can’t see.