MY HUBBY WANTS TO DIVORCE ME DESPITE THAT I AM PREGNANT WITH HIS CHILD

I really need your advice. I got married almost 3yrs ago but I had a child before for another man which I told my husband everything even before we started dating and he used to tell me it’s no big deal. I even asked severe times how he was goin to tell he people and what if they don’t agree 4 us to get married but he will always assure me that he will insist he want me. When we were about getting married he told I and my people we shouldn’t let ‎his people know about the child that after the wedding he will tell them himself, so we decided to tell his people that she’s my sister. She has been staying with us thou there are always so complain and quarrels about her but we will later settle it. Because I ve promised to be plain to him I told him everything about my finance after we got married. We decided for him to quit his job cos his salary is small and for him to start up a business with my money. Afterwards he lost his mum and I had to borrow him and his siblings almost a million naira which was my brothers money. Had to also fed for the family cos the business wasn’t doing fine. At first he do appreciate but suddenly he change. I was going through his phone 1 day and I saw he was asking a lady out when I confronted him he said he has been feeling bad lately that he got married to some1 who has a child for another man but that he’s not dating the lady. I saw severe call and text afterward but he kept on changing from bad to worst. He beat me up one day n asked my child to leave his house. After which he went to apologize to my father n siblings but he never apologize to me but I had to let go cos I won’t want to leave my marriage cos I have a child for him. After that he beat me up again but I didn’t tell anyone cos I decide to leave him as soon as I can get my money from him n his family but he immediately started begging n for days he did n pretended to have change. Recently my child came back to stay with us he told me he want her to leave n that when he pay me back my money I should leave too which I ve decided to do too but am about having another child for him. Am so tired of crying, am feeling very depressed, dissapointed, cheated, confused, regretful cos I ve given him all the money I ve I don’t even ve anything left. Pls help.