Setting the scene -- Adolescence as transition? -- Conundrums : sex education, "teenage pregnancy", and decision-making in the context of abortion -- Constructing a threat of degeneration : the invention of and research practices concerning the "social problem" of "teenage pregnancy" -- Young women and legalized abortion : the new "social problem" -- Othering : race, culture and "teenage pregnancy"/abortion -- Managing the threat of degeneration -- From "teenage pregnancy" to unwanted pregnancy.