My friend just found out she is pregnant. She wasn't wanting another baby. So her and I are womdering what we need to do so I can adopt her child when it is born

She and the father can prepare for an adoption through an adoption agency or the department of social services in some places. You can prepare as well, by completing a home study and ensuring that you meet the guidelines in your location to adopt. The agency will help to prepare paperwork (for a fee) for all parties, and will prepare relinquishment forms for the parents to complete after the birth. The baby will likely have to stay with another family until the waiting period for them to revoke their relinquishment has passed. So, long story short, you either need the help of a professional agency or an attorney.