Just reading that.. any of those times you could of died. I was with a guy like you discribe and on two occasions towards the end he strangled me it went to court I was lucky he texted someone saying what he had done as other wise he would probably have not been charged. When the police don't back you up it makes you question if it's that bad but it is.
The chances he will kill you after it escalating to strangulation is so high.
Just think of your little one when you feel you want to see him you have to snap out of it and focus on her.
No one can tell you what to do about the pregnancy but again the dangers of being tied to this man is a scarey thought. He shouldn't be anywhere near a baby.
What he's done to you is absolutely terrible.
All the best in what you decide to do x