RESUMEN
In France, teenage pregnancy has remained a relatively moderate and stable phenomenon for several decades. Public discourse on young people's sexuality and the issue of teenage pregnancies focuses overwhelmingly on two themes: contraception and voluntary termination of pregnancy, leaving in the shadows the reality of the experiences of these young under-age mothers. Thus, one of the major challenges of support in maternity centers is to ensure the coexistence of psychic movements linked to adolescent reorganization and those linked to the birth of motherhood. With this in mind, we have been able to highlight the importance of care structures for these mothers, acting as a substitute family figure for these young people. This support seems to have fostered the creation of more appropriate conditions for the establishment of the first mother-baby bonds in these initially very precarious psychological contexts.