Very stressed

I am 21 weeks pregnant today . This is my second baby . I didn’t want to have another baby because of my partner’s abusive behaviour and not getting any respect . But he assured me he is changed and we should have second baby. He always fought with me because of his family . They always after our money and whenever he wants he send them money . Today again he had very bad behaviour with me . So much abuse and talked about my past and made me feel that he did a big favour of marrying me ......when I am a self dependent woman working full time. I don’t know what should I do? I don’t want this baby anymore because I already have one and don’t know how long this marriage is gonna last because it is too much now!!!!! Can’t take his shit anymore.....can’t talk to my family because choosing him was my own choice......I am so much 😰 stressed out......don’t know what to do 😢😢😢he was ok for last two months but today he showed that he can’t be changed!!!!!