Globally, each year around 16 million girls aged 15-19 give birth, accounting for around 11 percent of all births. The main advantages of this study were to identify predictors of teenage birth and examine the trend of teenage birth based on data from the three Ethiopian Demographic Surveys (EDHS). Discrete-time hazard modeling was used to estimate the hazard of first birth before age 20 after controlling the effects of socio-economic factors. The results suggested that the overall likelihood of first birth before age 20 among Ethiopia women increased slightly over time in the three EDH surveys. At the individual level, women's education, especially secondary and higher educational level, had the strongest effect to delay first birth during adolescence in the three surveys. Residing in urban areas was also inversely associated with teenage birth. Having media exposure has a significant delaying influence, but the effect was low in the 2011 EDHS data. These findings reinforce our understanding that the government should continue its efforts to promote female education, especially higher education.