Immediate Skin-to-skin Contact After C-section

Women are recruited before elective c-section. Randomizatiion is performed just before the operation. Control group: The operation is performed as usual, with observation of the newborn by medical staff. The newborn is then wrapped in a blanket and given to the father. Intervention group: The newborn is given to the mother in the first minute of life, placed on her chest to allow complete skin-to-skin contact. Observation of the baby is performed in this position. The skin-to-skin contact lasts as long as the operation is not completed or the mother is not able anymore to keep her baby on her chest. Sampling (in both groups): * salivary samples are obtained with salivettes from the mother 1)before the operation and 2) after the operation, in the recovery room (90 minutes after birth). * salivary samples are obtained with salivettes from the newborn 1) 20 minutes after birth and 2) 20 minutes after the vitamin K injection (performed at 60 minutes of life) * A cord blood sample is obtained for prolactin, ACTH and cortisol analysis. Video recording: The newborn is video recorded at the vitamin K injection (from 1 minute before the injection to 5 minutes after) for analysis with the Neonatal Infant Pain Scale. Satisfaction: The mother's satisfaction is evaluated with a questionnaire 24 to 48 hours after birth. Breastfeeding: The breastfeeding is evaluated by a research nurse 1) at the hospital and 2) by phone interviews, up to 6 months after birth.