LiL, you will need to take him to the vet anyway, to get him checked out and get his jabs, so you can't put it off forever. Many people confuse staffies and pitbulls, being afraid of both. You would feel worse about it if you keep him longer and find he is illegal and they take him from you. Get expert advice and they will help you to decide what has to be done. I feel for you though, it's easy for a pet to get inside your heart after only a few days - but if he is a pitbull, he may not stay a soppy baby for long. Think of the future.