The objective of this study was to describe nulliparas' reasons for the type of provider (i.e., midwife, physician) and childbirth setting (i.e., home, hospital, hospital-based birth center) that respondents expected for their births. Data were collected via a cross-sectional, descriptive, self-administered, Web-based survey including both close-and open-ended questions and were analyzed using conventional content analysis. Respondents were 220 nulliparous women aged 18-40 years, living in the United States, and pregnant at 20 or fewer weeks' gestation. Women's reasons were categorized broadly as relating to provider/setting attributes, relationship with provider/setting, normative choices, respondent attributes, and practical considerations.Respondents' reasons highlight misconceptions about childbirth care options, especially regarding midwifery and nonhospital settings, which may be addressed by childbirth education.