Thank you @GreenFingersWouldBeHandy that was really nice of you to come back and say that I really appreciate it 
I know it's hard to understand unless you've been there but it took me weeks to plan my exit and I wasn't married to him and didn't even have kids.
It isn't safe to just up and leave, not until you have a safe and planned place to go and people to help, ideally friends / family and professionals eg health providers, police etc.
The most dangerous time in an abusive relationship is the first time the victim physically leaves the perpetrator. The second most dangerous (the last time I checked the stats) is when the victim has just given birth so is at her most vulnerable.
Movies and TV tell us we should run away as fast as we can, as early as we can but like I said there needs to be a strategy in place to manage the risk of the situation.
I'm sure OP is listening and hasn't spent 11 pages thinking everyone is wrong. She will be confused, unbelievably anxious, terrified, totally lacking any confidence. She likely has limited / monitored communication with friends and family due to isolation and fear. She is also likely to have very limited access to money as her partner probably has complete financial control.
So anyone feeling frustrated and writing in anger, please go easy on OP. The last thing she needs is to feel people are angry with her. Angry at her situation, of course everyone is, but please don't direct that anger at her and tell her she is weak and that you wouldn't stand for it - you'd be surprised what an abusive monster can make you stand for, they aren't abusive monsters at the start and it all happens painfully slowly until there is none of you left 