You will receive a termly report from your supervisor about your academic progress. You are able to view these supervision reports via your CamSIS account (www.camsis.cam.ac.uk). These reports are carefully monitored and provide an invaluable early warning of possible problems. Your Tutor will also have access to them and will be keen to discuss them with you if you wish.
More details on reports, academic progress and a wide range of other matters can be found on the University web pages.