Background: Few reports have addressed associations between family strengths during childhood and adolescent pregnancy and its consequences. We examined relationships among a number of childhood family strengths and adolescent pregnancy, risk behavior, and psychosocial consequences after adolescent pregnancy.Methods: Our retrospective cohort of 4648 women older than 18 years (mean age, 56 years) received primary care in San Diego, CA. Outcomes included adolescent pregnancy and psychosocial consequences compared with number of the following childhood family strengths: family closeness, support, loyalty, protection, love, importance, and responsiveness to health needs.Results: Of the cohort, 3082 participants (66%) reported 6 or 7 categories of childhood family strengths. Teen pregnancy occurred in 39%, 33%, 30%, 25%, 24%, 21%, and 19% of those with 0 or 1, 2, 3, 4, 5, 6, and 7 childhood family strengths, respectively (p for