Unmarried pregnancy among adolescents is a concern for all. This problem is misunderstood and is often associated solely with free sex or voluntary sex outside of marriage. However, the prevalence of unmarried pregnancy among female adolescents also resulted from rape and incest. Understanding the causes of adolescent pregnancy is crucial because it will give a different perspective. In addition, the way how to tackle this problem and the effects on female adolescents involved are also different. Hence, this article attempts to discuss the issues of voluntary sex, rape, and incest among unmarried pregnant female adolescents in Malaysia. This article is also hopefully can enhance the understanding between voluntary sex, rape, and incest that contributes to unmarried pregnancies among female adolescents in Malaysia.