Introduction: Pregnancy in adolescents and domestic violence (DV) are worldwide problems. Their prevalence is influenced by cultural factors. Objectives: To characterize pregnant adolescents and their sexual partners, and to determine the prevalence of psychological, physical and sexual DV. Methodology: Cross-sectional study of 406 Colombian pregnant teenagers. Socio-demographic data were collected, and the scales “Are you being abused?” and “Abuse Assessment Screen” were applied. The former identifies domestic violence by the partner, and the latter, DV at any moment, the last year or during pregnancy. Results: Age: 16.5 ± 1.5 years, 92.9 % were in late adolescence, average years of schooling: nine; 50 % dropped out from school when they became pregnant; 70 % depended on their parents, both before and after pregnancy. DV by the partner: 7.1 %; physical DV: 6.7 %; psychological DV: 3.7 %; sexual DV: 2.2 %. DV by partner/husband/other person: 12.4 %; physical or emotional abuse by partner/another person: 21.7 %; fear from the partner: 3.4 %. There was significant association between alcohol consumption by the partner every weekend and DV. Conclusion: Frequency of DV against pregnant adolescents is high and alcohol consumption by the partner is an important risk factor for it.