This article describes a unique Australian infant mental health (IMH) service for families from pregnancy through to early parenthood (0-3 years) and training center for postgraduate clinical psychology students. The Australian Association for Infant Mental Health Incorporated, West Australia Branch (AAIMHI WA) "Competency Guidelines"® provides the framework in which interns build their competencies in IMH relationship-based practice at the clinic. The authors discuss the achievements and challenges of the Pregnancy to Parenthood (P2P) Clinic, including transformations in how interns practice as clinical psychologists, the way in which this service is experienced by families, and future directions as the demand for the service increases.