Abstract: The rate of teenage pregnancy among the school going girls in both primary and secondary schools in Kenya has been on the increase in the past few years. Each year the media highlights the high number of girls failing to sit their final primary (KCPE) or secondary school examinations (KCSE) or doing the exams when expectant. The present paper aimed to establish the influence of parents sources and level of income on teenage pregnancies in public primary schools in Nandi South-Sub County. The study was guided by The Social Learning Theory which was propounded by a Canadian psychologist in the 1960s. The study adopted a descriptive research design using both quantitative and qualitative approaches.