I'm going to leave him tonight, do you agree i should?

I have been in a relationship with my boyfriend for nearly 2 years, we became very serious very quickly. I got pregnant very early on with our beautiful little boy. 4 months in the relationship we moved in together. Things were fine, not perfect, a few niggles here n there but yeah we were good together. We got to know each pother very quickly mainly because we had to. He had always shown little signs of being a bit jealous and controlling but nothing major, just something i sort of pushed away and took as he cares a little too much for me. When we moved in together i was only a few weeks pregnant, It was great at first, snuggled up on the blow up sofas n eating noodles for the first week! I couldnt have been happier. My pregnancy was bad, i was heavily bleeding for the first 20 weeks so i was at bedrest a lot of the time so he done lots for me, everything i wanted, he was the doting dad to be. I got to about 4 months pregnant n thing's changed he was accusing me of doing thing's, when i rarely left the house without him. Then one night we had a petty argument over something stupid like what to eat like we've had a few times, but this time he changed, he turned violent. It wanst os much the violence it was his words, like things like he seen a pregnant girl in a supermarket laughing with her friends n why do i sit on bum all day. I didn't retaliate to his violence, his pushes and grabbing me as i was worried about the baby anyway i got my brother in law to pick me up n i split up from him. I did get back with him as i was naive enough to fall for his sorrys, and it was such an awkward situation with me being pregnant. (I am admitting to being naive and until your in that situation you won't understand why). The violence got worse and i ended up phoning the police and he got arrested and went to court etc. We were still seeing a lot of each othe and still in a relationship but i was staying with my mum. Things got better, i was 8months pregnant and he went out one night and cheated on me. I didnt find out until my son was 2 weeks old and it made me go really bad and i was'nt right for a while. I have been hardwork especially when i was pregnant, I can be nasty and hard to compromise with, but with all the history thats what made me like this. Looking back he used to fight for me, now he is plain nasty, walks out on me and I am happy to let him go then he finds excuses to come round like "I've bought the baby milk". When he allready has milk. These past couple of months i have mourned the relationship, and I have nothing left to hold on to, He's gambeling, putting things before me. He does do a lot for me though and buys me things but this doesnt mean a thing to me. Last night i had a different feeling than before, I was really upset at how cold hearted he has become and laid in bed crying and he was being pure nasty so for the first time I packed his things up and told him to leave, he did. He went back to his dads then this morning at about 4 in the morning he comes back wakes me up n egts back in bed. I am debating weither to just move away.