My husband is hurting me. What should I do? Should I become an apostate?

My name is Aisha. I was born in a village in the Nadj region of Saudi Arabia and my uncle used to molest me as a little girl. One day, when I was 13, a man, who was nearly as poor as us, approached us with his 14 year old son. He was looking for a bride, and desperate, my father gave them me. Muhammad, the boy's name, never found out I wasn't a virgin and I fooled him into thinking I was, despite what my uncle did. I illegally immigrated here years ago with my husband Muhammad when I was 14. Muhammad wanted to participate in a stealth jihad. He and I had many children, a lot of them sickly. The entire time I had known Muhammad, I was secretly binging and purging as well as not eating. I became desperately thin, and most of our children were sickly. Two of them died, and Muhammad, despite being 17 when the first one died, beat me horribly. Before, when I was still 14, he found out I wasn't a virgin and beat me for that to. He beats me every chance he gets. What should I do, Insha'Allah? HELP!