OBJECTIVE: To develop and assess the feasibility of an early preconception counseling program for adolescents called READY-Girls (Reproductive-health Education and Awareness of Diabetes in Youth for Girls). RESEARCH DESIGN AND METHODS: A total of 53 adolescent females with type 1 diabetes between 16 and 19.9 years of age were randomized into groups receiving a CD-ROM, a book, or standard care (control) and given one comprehensive session. Outcomes were assessed at baseline, immediately after, and at 3 months. RESULTS: Teens who received the CD and those who received the book demonstrated significant (P < or = 0.05) sustained improvement (over 3 months) in knowledge, perceived benefits of both receiving preconception counseling and using effective family planning, and perceived more support with reproductive health issues. CONCLUSIONS: Clinical feasibility of the program was demonstrated. Both the CD and the book appeared to be efficacious formats for the short term. Future studies should examine repeated boosters of a CD and a book, which are not meant to replace but rather to reinforce and supplement health professional education.