When should I tell the Home Office that I am pregnant and what evidence of pregnancy does the Home Office require? You should tell the Home Office that you are pregnant as soon as you have received confirmation of pregnancy. The Home Office requires original, written confirmation of pregnancy from a health official, e.g. a MATB1 form or a letter from a treating clinician, such as a Community Midwife or GP, which shows Expected Due Date (EDD) and details about the health professional. You can get a MATB1 certificate from your midwife or doctor providing your antenatal care, when you are 20 weeks pregnant. Before this date, ask the midwife or doctor to write a letter to confirm your pregnancy. Manage Cookie Preferences