The topic of this briefing is the prevention of pregnancy among a specific group: looked after children and young people, who usually live in foster homes, but may also be in residential placements or with family members. Research and policy literature currently focuses on the provision of appropriate and adequate sex and relationship education in conjunction with accessible contraceptive services as the means of reducing teenage pregnancy. The limitations of school-based programmes for looked after children are widely recognised; additional sex and relationship education is therefore recommended.