The purpose of this article is to present a best practice model for adolescent prenatal care. Increasing rates of unplanned pregnancies coupled with the highest rates of all age groups with inadequate prenatal care make this population especially vulnerable to birth risks and maternal-infant relational problems. While there is much literature on individual level variables that affect prenatal care adherence such as age, poverty, low self-esteem, and transportation, there is little practice based research knowledge on diminishing potential birth risks by repairing and building the maternal-infant (fetus) relationship prior to the actual birth of the child. Using findings from the author's former study, practitioner experience, and a review of evidence based literature, the article presents an innovative attachment theory based prenatal care model for social work practitioners and other health care professionals working with pregnant adolescents.Keywords Prenatal care Á Attachment theory Á Adolescent pregnancy Á Best practice adolescent prenatal care Á Unintended adolescent pregnancy Á Adequate adolescent prenatal care Á Prenatal attachment Unintended or unplanned pregnancies are a major health concern associated with increased risks of parental prenatal detrimental behaviors, abortions, and negative social and birth outcomes. About one-half of all pregnancies are defined as those reported by the mother to be untimed (occurring too early or too late) or unplanned and unwanted at the time of conception (Finer and Henshaw 2006; Santelli et al.