During intercourse my penis slipped and hit against my partners body. There was no popping sound, but there was an immediate and strong pain that quickly subsided. Day after, I have no discoloration, swelling, or apparent bruising, but I do have a constant ring like pain around the area between the head of the penis and the shaft that is lingering. Is this an injury that I should go in to consult with a doctor, or should I hold my horses and see if it subsides with time?