either or. no matter what the truth is always this. YOU will be the provider of that child. Otherwise, if you get serious with her and she completely cares for the child, you pay nothing, but extra rent or more money to buy the extra bedroom in the house/apartment/aircon and food. ect (see, you always pay in some way).
If she takes on that role as sole provider. you are going to have a kid in your home, that you cannot discipline, and you will simply be a bystander in your own house. 13 and angry slams your doors on the way out "please ask him to stop" that kinda bullshit.
trust me, not the way to go. because if you do not like the child, she's going to chose him over you, EVERY time. so, kids 15 and being a real douche bag, you cannot kick him out. Little fucker broke your big screen tv cause you didnt' get him a ps5. NOTHING you can do. otherwise, you always risk losing her.
in that situation you would have to have more patients than ghandi