Will i get in trouble?

Today a boy was being a n*b to me and e blocked the door when i opened it so i forced it and he was kinda trapped. Then i went to walk away and he pushed his hand into my eye area and i had a fight with him...(i punched him in the forhead(he was wearing glasses nd i didnt wanna break em)) his head spun in a circle and he fell on the floor and banged his head on the water fountain and in time he told the teacher. The teacher hasnt spoke to me yet. Will i get in trouble??