As near as I can tell, the only emancipation that OK provides is the ability for minors to enter into contracts. The statute, found here:
State
does not emanicpate you from your parents.
So what I would suggest is to go to your local Family serv ices agency and discuss this with them.
Clearly, though, you would need to show that you can care for yourself and your child without any assistance from parents, the state or third parties. Getting emancipated is extremely hard.