After determining the sample based on inclusion and exclusion criteria, we collected data from medical records of women included in the sample. Women’s records were stored in the hospital’s delivery unit database, where we retrieved the data. The pregnant women who presented a birth plan did so a few weeks before labor and birth, either completing a standard form provided by the Andalusian Health Service or drafting their own document. After presenting the birth plan at the hospital, they received an appointment to visit the delivery unit. During this visit, hospital staff answered the women’s questions and explained the limitations of the hospital’s labor and delivery service (e.g., not having a tub for underwater births). The intent of arranging this visit for the women was to avoid confusion, misunderstandings, and possible frustration if their requests and preferences outlined in their birth plans could not be met.