Unless Social Services has some kind of active case involving your family, they have no authority here. The only way to compel a paternity test is ti file a paternity case in court, ask for a determination as to whether you are the father, and ask the court to order paternity testing. If you are the father, then there will be orders entered concerning child support and parental responsibilities.
www.karlgeil.com. This answer is provided as general information about a legal issue, is not legal advice specific to a particular case, and does not create a lawyer-client relationship with the person asking the question.
Mr. Geil is correct. You would need to file a paternity action. If you are not the father, this will raise questions about the impact on your young son should he suddenly lose a father. This situation requires much discussion and soul searching to give you the best chance at making decisions that are sound, wise and legally informed. I suggest you schedule a consultation with a family law attorney who can give you greater perspective than a brief answer in this forum. Good luck to you.