Introduction:

Adolescent pregnancy has become a worldwide phenomenon, which has brought about the increase in complications typical of childbearing in this period of life; hence, the importance of constant study about the behavior of this event.

Objective:

To identify the behavior of important variables concerning pregnant adolescents.

Methods:

A cross-sectional and descriptive research was carried out at 30 de Noviembre Teaching Polyclinic in Santiago de Cuba, during the years 2016 and 2017, based on the obstetric histories of the adolescents who became pregnant and gave birth in those years. Variables of interest were selected, such as age, gestational age at first prenatal visit, age of onset of sexual intercourse, schooling, dropout, nutritional assessment at first prenatal visit, in addition to the age of the sexual partner and the child weight at birth.

Results:

The adolescents showed a mean of onset of sexual relations of 15.7 years, the highest percentage of school dropouts corresponded to the basic secondary school, the ages of their sexual partners between 20 and 39 years were more frequent, and those were evaluated with deficient weight at first prenatal visit contributed a greater number of newborns with low weight.

Conclusions:

The frequent study of pregnancy background in the adolescent stage is decisive in coping with this phenomenon and constitutes an essential resource for improving the health status of the population in this age group.

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