OBJECTIVE: As part of teenage pregnancies, it is often found vulnerability and pregnancy follow-up of poorer quality. This investigation aims to establish profiles of young women and to assess what followed. METHODS: A retrospective study (2007-2011) of 220 births to women aged 12 to 17. RESULTS: The monitoring of these teenage pregnancies remains generally lower than France national averages, but significant differences are observed when one takes into account the socio-demographic factors. Three profiles appear: 66 teenagers (group A) reported a chaotic pregnancy monitoring, with a poorly enquired social, professional, familial situation. One hundred and two teenagers (group B) have a better follow-up but pregnancy is often unwanted with an unstable social situation. Finally, 52 teenagers (group C) have a rather good quality monitoring with a more assertive investment of pregnancy. CONCLUSION: To consider the lives of these young women is essential to study early motherhood and mitigate the vulnerabilities of this fragile population. An identification of factors favoring an optimal monitoring of pregnancy among young women is paralleled with reduced obstetric and social risks.