Why???

Violence is not the way to solve all issues especially to a pregnant girl.
What were you thinking? I don't care how mad I made you was it that serious that you had to put your hands on me? Believe it or not I'm filing a police report on you and that's not a good look for you. The law takes that seriously just so you know. You got lucky today. I called them but for some reason they didn't come out to my house. I will be making a trip to the police station tomorrow. You are wrong and I hope you realize what you did was uncalled for.