[Pa] Sperm donor baby

Location: Pennslyvania

32f Girlfriend wants a baby. However I 32m dont want anymore children. Her faith and family is telling her she needs to go to a sperm bank. She is worried her biological clock is running out. I'm not sure if I'll want another child. I have one. My question is. If she goes to the sperm bank will I be liable for child support if she moves in with me or date her through all this? In the event of us breaking up.