Adverse childhood experiences have a potential lifelong impact on health. A traumatic upbringing may increase antenatal health risks in mothers-to-be and impact child development in their offspring. Yet, little is known about the identification of adverse childhood experiences in antenatal care. The objective of this study was to explore the feasibility and acceptability of the adverse childhood experiences questionnaire among midwives and factors affecting its implementation. Three Danish maternity wards participated in the study. The data consisted of observations of midwifery visits and informal conversations with midwives, as well as mini group interviews and dialogue meetings with midwives. The data were analysed using systematic text condensation. Analysis of the data revealed three main categories; “Relevance of the adverse childhood experiences questionnaire”, “Challenges related to use of the adverse childhood experiences questionnaire” and “Apprehensions, emotional strain, and professional support”. The findings showed that the adverse childhood experiences questionnaire was feasible to implement in Danish antenatal care. Midwives’ acceptability of the questionnaire was high. Training courses and dialogue meetings motivated the midwives to work with the questionnaire in practice. The main factors affecting the implementation process were time restrictions, worries of overstepping women’s boundaries, and a lack of a specific intervention for women affected by their traumatic upbringing circumstances.