In order to explain teen pregnancy from a sociological perspective, we need to ask why some teens become pregnant. We are trying to determine which types of teens are more likely to become pregnant. Once we have determined this, we will try to understand why those groups have higher rates of teen pregnancy.
Sociology tries to understand how membership in groups affects people in society. In other words, sociologists try to understand how different groups differ from one another and why. For example, sociologists might try to find out whether different racial groups have different income levels even if they have the same amount of schooling. If they find differences, they try to understand why this happens.
So, how do we understand teen pregnancy from a sociological perspective? We would need to think about what groups of teen girls are more likely to get pregnant. We would need to look at issues of race, income level, education, and religiosity. We would then try to explain our results. For example, we might say that poorer teen girls are more likely to get pregnant because they have less to lose. We can say that they are not likely to go to college and get good jobs anyway, so they are less likely to take care to avoid pregnancy.
So, to explain teen pregnancy from a sociological perspective, we have to try to determine why teen girls of different groups are more or less likely to get pregnant.