If you want to leave your husband, you need to flee to the police station, church, friends, neighbourghs, relatives, women's shelters or anywhere, where you can get help.
If you want to stay with your husband, you have to be very cunning, to keep him calm and happy, so he vill not abuse you and your child.
Always ask him kindly if you need anything from him and give him a lot of appreciation, if he satisfies your needs.