Robin answered you perfectly. A fecal exam isn't a bad idea at all unless you got the snake from a top breeder where you are not as likely to have issues that way. For now though just keep the little snake quiet, don't handle it much if at all, keep it's enclosure clean, warm and safe for it and let it settle in nicely for you. In about a week, offer it a meal, preferably what it's used to eating and in the feeding manner it's used to and likely all will go very well.