he came inside me without my permission *don't read if against abortion*

we have had this problem. he has this fetish where he wants to cum inside me. I always tell him respectfully, no, we are not ready for another baby. I myself cannot handle it. I feel my body still repairing from giving birth. I can't walk a lot of times, usually after work every day cause my back is so messed up from being pregnant, epidural, and birth. There's a lot of things I can't do anymore physically. we are living paycheck to paycheck, he just lost his job and got another job making even less money and less hours. we cannot afford another baby. so I told him we are getting a abortion we can't keep it. as much as it hurts me to do so, I know it has to be done. I can't go a day without crying. I am so angry at him. he came inside me after I kept telling him, please no please no... now I am pregnant. he said "it's what you get for not being on the pill, now you are killing our child when I want to keep it." keeps saying I'm a murderer this is my fault... n when I first got pregnant, he became abusive physically and mentally. sent me to the ER twice. started cheating on me. developed a porn abession, 50-100 videos a day. it's not safe for me or the unborn baby. I'm afraid he will damn near kill me or the baby he used to be the perfect man. then the flip of a swwitch I'm pregnant he's abusive and a cheater. I can't go through that again. I never want to have kids with him ever agin. I'm not even sure if I want to marry him. I'm stuck in this shitty abusive relationship. he's such a fucking narc.