What's going to happen to my mum/brother?

Well, they have been abusing me since I was 12, I'm now 16, and my brother is also 16, they usually punch me in the face, make my nose bleed, call me a "wh0re" for little things, like my room being a little bit messy, she hits me with brooms, and threatens to kill me, but last night my brother really got me angry, and I finally called the police, and my mum is staying there overnight, what is going to happen to her?