Materials and Methods: This cross-sectional study was done in the postpartum unit of Taleghani hospital (Arak, Iran). In the design stage, questionnaire items were extracted from a comprehensive review of qualitative and quantitative studies and similar tools. A 25-item questionnaire was then designed, validated, and distributed among 400 primiparous women (selected via simple random sampling). The filled questionnaires were used for factor analysis. The validity of the tool was then found using face and content validity. Its reliability was also confirmed by internal consistency.

Results: The questionnaire to assess the perceived experiences of natural childbirth in primiparous women contained six domains including privacy (6 items), mother"s experience of childbirth (5 items), mother"s experience of midwife"s behavior (5 items), midwife"s support (3 items), experience of childbirth pain (3 items), and understanding mother"s expectations of the personnel (3 items). The internal consistency of the questionnaire was calculated as 0.72.

Conclusions: Valid and reliable tools like the one designed in the current research can facilitate the evaluation of services provided in delivery rooms and help women have a more pleasurable experience of childbirth.