Examined psychosocial factors related to prenatal and postnatal anxiety in 291 primiparous Mexican women giving birth in Los Angeles. Characteristics of health care providers preferred by more anxious and less anxious women were also assessed. Higher prenatal anxiety was associated with less desire for an active role during labor, lower assertiveness, higher pain expectation at delivery, lack of support from family members other than the husband, and preferences for health care providers who are female and Latino. All groups of women preferred health care providers who provided good medical explanations and who were knowledgeable, friendly, and sympathetic. Postnatal anxiety was significantly lower than prenatal anxiety. Negative attitudes toward the baby and number of complications during labor and delivery, however, were related to postnatal anxiety adjusted for prenatal anxiety.