Right, stop right now. Please stop feeling he is all you have. He isn't.
1. You have a child
2. You have self respect.
Please read back your question. You include the words "domestic abuse", "he tried to strangle me" "pin me down". You are not alone.
Please call these people for some support and advice
http://www.womensaid.org.uk/
You will cope if he is sent down, because you and your child will have a life away from his violence. Please seek advice.