“…The main secondary outcome is psychological distress, measured with a validated French version of the 12-item General Health Questionnaire [ 42 ] and considered as the most important outcome for perinatal health measures (i.e., main outcome measuring a health determinant). Other secondary outcomes include: breastfeeding self-efficacy, assessed with a French version of the Breastfeeding Self-Efficacy Scale Short-Form [ 43 , 44 ]; anxiety, assessed with a validated French version of the State-Trait Anxiety Inventory [ 45 ]; self-efficacy in the parenting role, assessed with a French version of the Parent Expectations Survey [ 46 , 47 ]; depression, assessed with a validated French version of the Edinburgh Postnatal Depression Scale [ 48 , 49 ]; concern about labour and birth, assessed with a French version of the Oxford Worries about Labour Scale [ 50 ]; control during childbirth, assessed with a French version of the Labour Agentry Scale [ 51 ]; personal control in pain relief during childbirth, assessed with a French version of the Personal Control in Pain Relief Scale [ 52 ], breastfeeding status and birth weight. A back translation process [ 53 , 54 ] will be used to translate English versions of the Oxford Worries about Labour Scale, Labour Agentry Scale and Personal Control in Pain Relief Scale to French.…”