Just need to talk ...

Okay so to start this iam 26 and in my 2nd marriage. I have a 8 year old( pervious relationship)and my current Husband and I have a 3 year old together. We have been fighting alot and hes very controlling. He must know every move I make and if I go somewhere and ism going for more than 2 hours hes texting very mean things. Well today I went to the doctor to have a blood pregnancy test done because I honestly feel pregnant. Well he found out that I think I could be and hes been threatening me for weeks to leave me and now he keeps saying things like he wishes I would have never came back home (I left for 2 weeks) and he is going to kill himself if I am pregnant and how hes not ready for more kids or doesn't want anymore. I am worried if I am actually pregnant hes going to make me miserable. We don't even sleep in the same room anymore... so I need advice to I go ahead and file for divorce or what.... oh let me add he doesn't want me working because of our toddler.