Help please, my dad punched me in the mouth & my ribs.!?

Yesterday my dad said i hid some mail , & i didnt my brother did. So he punched me in the mouth & the upper torso. I'm 13. My ribs hurt bad , i cant move that well. My front teeth are wiggly & my gums look cracked. i have swollen eyes & my teeth feel like they are gonna come out. My ribs are killing me. What do you think happened? Also, do i call police..or go to the hospital. i cant leave...im about to graduate 8th grade & i need to stay. Also, my brother is scared , & i cant leave him & let him get beat on....help me! what do i do..? My mouth is bleeding, i cant eat anything....