Does this guy want a relationship?

You missed the biggest sign he gave you. He said off the bat that he did not want a relationship. He then slept with you early on. When you are not with him he is probably sleeping with others so no, he does not want a relationship. He did say that he wanted a child so I would be suspicious of that and make sure protection is used. Him bringing you around his family means nothing because he is only looking for a friend. Keep your ears open because when a man is telling you what he wants you need to listen and not read actions. That's where us women mess up the most with men. He told you what he wanted so believe him. If you want a relationship he is not the one.