Objective: This cross-sectional study aimed to investigate the relationship between a mother's current emotion regulation strategy (antecedent-focused vs. responsefocused), her satisfaction with childbirth, and posttraumatic and/or depressive symptoms after unplanned C-section. Background: The mother's and baby's health is considered a priority during childbirth. As a result, situations in which an unplanned C-section is required may not allow mothers to express their needs and emotions. This may lead to feelings of dissatisfaction regarding the childbirth experience. Methods: Fifty French participants aged 18-35 (M = 27.10; S.D. = 3.99) who had a C-section were recruited on social networking groups and completed four self-report measures online, up to two years after childbirth. These measures assessed emotion regulation strategies currently used, birth satisfaction, postpartum depression symptoms and PTSD symptoms. Results: Main results indicate (1) Mothers who use expressive suppression, a response-focused strategy, are less satisfied with childbirth. (2) Emotion regulation, when combined with maternal satisfaction, shows a negative association with posttraumatic stress score and depression score. Conclusion: This study provides interesting data for further research. Follow-up studies about emotion regulation, postpartum depression and posttraumatic stress symptoms should be conducted in the future in order to provide clinical recommendations.