My sister is 15 weeks pregnant & doesnt want the child considering she has a 9momth old and says she cant take care another one. So talked about abortion I talked her out of it and told her I would care for the child. & I have no idea where to begin. Do I need a attorney or do I just go with the court system. The baby is due in july & I wanna have everything legal because I dont want in a couple months/years her change her mind and want the baby back. HELP PLEASE!!