So what if its not yours but you have your name put on the BC? You are stuck with the fucking CS payments on a fucking rugrat that isnt even yours rob. Havent we been over this a million times already? dont do a gutdamn thing until you have the paternity test done and know that the kids yours.
If you put your name on the BC before finding out the kid is actually yours, and it turns out the kid is not yours, you are FUKKED.
Jesus gutdamn christ rob I love ya but this shit is about to get really real, really fast, so dont fuck yourself in the ass before you even get out the gate.
If the kids not yours you fucking jettison both their asses out of your life and get on with making yourself successful. Dont carry any dead weight if you dont have to (if kids not yours).