Your kids and the one you are carrying all the "pick-me-up" you need to get yourself out of that situation. How would you feel if someone were treating them the way you are being treated? The longer they are around this type of behavior the more problems it is going to cause them later in life. When you need strength look and them and remind yourself what kind of lives you want for THEM and that right now they are learning that the opposite is what they deserve. What they see happen to Mama is what they base their future relationships on.
You won't be the first woman to walk out of a bad relationship when pregnant, it happens, and usually the woman thrives. Even taking care of kids and working, it's more energetic than having a man draining you all the time. Good luck, go happily.
Sweetheart,
I am sorry that you endured this! I think based on your situation your doing the right thing! I was in a terrible abusive relationship aswell whilst I was preggers with my second child with my ex. I can't say any amount of stress is good for you, your children and your unborn child. Your not a failure, dont ever think of it that way! Your doing whats best for you and your babies....hats off to you, alot of women would stay.
As I did for many years....Hold your head up high girl!
Hugs