the thing is - you probably wont leave him. but now you should be at a stage of heightened awareness.
you need to explore all your options. make sure you are in full knowledge of where to go.
put all your documents in one place - so you can easily put your hands on them. make sure you have your bank cards, birthcertificates, passports. Because once you leave - you will have to prove your identity to the relevant agencies like benefits and housing etc.
look up what benefits you might be entitled to
get a free session from a solicitor.
phone the refuge.org website to just get some information.
put some clothes in an old suitcase for you and your child and store it somewhere - incase you just want to leave.
organise your kitchen cupboards as such that you have some non perishable goods you can dash into a bag.
know your rights regarding your housing situation - know them thoroughly.
ask him to source and attend some councelling as a conditin that you stay.
it is important HE sources it - not you.
its stuff that neds to be present in your brain.