husband is abusive

My husband is very abusive verbally. He has broken alot of my things and twice he abused me physically as well. I got married 4 months back and lived with him for 2 months, he is jobless at the moment and lives in abu dhabi with his parents. Beacause of his continous pressure i forgave him my remaining amount of haq mehr; which was 9 lac 85 thousand PKR. I am 5 months pregnant but due to his constant abusive behaviour and character accusation i ve decided to file a divorce case. I need to know about the cusdoty of my child and his maintence. Also will i get any maintence? What can be the possible challenges for me. Pls guide. Thanks