In this interview-based study I examined the information practices of pregnant women. The study suggested that information searching and use are best conceptualised not as cognitive skills but as social and situated practices. A variety of factors shape a pregnant women's search for and use of various kinds of information, including for example her relationship with midwives and doctors or her ability to draw on friends and family for advice. The internet plays an important role in women's information practices, offering access to both biomedical knowledge as well knowledge that is grounded in other women's personal experience. A key theme identified on the basis of the 26 interviews is the role of questions of authority with regards to information about pregnancy, labour and childcare. The women were constantly making assessments about what knowlede they deemed to be valid and reliable.