Although now used for a wide range of functions such as education, marketing and political commentary, blogs were originally a space for narrating personal life stories and have much in common with autobiography and diary genres. This article examines (in)fertility blogs written by women trying to conceive, arguing that blogging helps women to renegotiate their experiences of femininity when motherhood is denied or difficult. To do this, I focus on blogs as a space for knowledge production, creating a new paradigm for fertility information which challenges both the doctor/patient power dynamic and traditional discourses concerning fertility. I show how bloggers use their blogs to ‘make sense’ of their (in)fertility experiences by looking at the distinctive content, style and format of their blogs. Finally, the knowledge produced in the blogs is problematized by ‘situating’ them within a broader sociohistorical framework.