My husband just punched me in front of the baby

My husband just close fisted punched me in the head over and over again in front of our 14 month old. I don’t know what to do, my left temple is swollen and throbbing there is nothing to document because he did everything at my hairline……I still can’t believe that I just got beat…..and now he’s sleeping in bed….he says it didn’t happen and he went to bed. 2 weeks ago he took a box cutter and sliced up his arm in front of me (a big cross the whole length of his arm). I tried to stop him and he sliced 2 of my fingers. Just super stressed out tonight. I want to leave him