Depression and happiness respond to the existential duality. The woman in the gravido-puerperal period is subject to it. Accompanying her in the management of postpartum crises is a guarantee of prevention and adequate management of postpartum depression with its corollaries. This document makes the link between postnatal happiness and postpartum depression. It draws attention to the need for adequate management of the woman in order to have a positive impact on the children, future adults. This approach allows each woman to fully enjoy postnatal happiness. It is also a guarantee of new balanced and fulfilled generations.