Inclusion Criteria:  Pregnant woman whose age is ≥ 18 years, delivering after 34 SA in one of the two participating maternity hospitals that responded to the EPDS Accepting a blood sample EPDS score less than 8 or greater than 11 French-speaking woman Woman affiliated with a health insurance plan Free, informed, written consent was obtained from the woman  Exclusion Criteria:  Fetal death or medical termination of pregnancy Women under guardianship or trusteeship Woman deprived of liberty Woman under court protection