I need help RIGHT NOW should i run away?

Yesterday Night My Dad Started Beating On His Girlfriend I don't Know Why Because It Started In There Bed Room And I Was In My Own Bedroom. Atfer The Fight She Left And I Sleep In The Bathroom. But Today I Got Into An Arugment At School And I'm Going To Be Suspended For Two Days I don't Want To Go Home Because He Might Put Gis Hands On Me Like He Did His Girlfriend And I don't Wana Call Child Protecvie Services Because The Last Lady I Had Didn't Believe. me Or Help Me And If He Find Out I Called I'll Be In Even More Trouble. Im Thinking About Running Away Before School Dismisses At 2:15 Today . But I Was Told If I Ran Away I'd Go To Jail. Is There Anything I Can Do Because I don't Wana Go To Jail But I don't Want To Go Home And I Know If I don't Go Home He Will Call The Police. I'm Also Scared That If I Contact Anybody For Help They'll Just Send Me Back To His House AndThings Will Be Even Wrose.