CHAPTER ONE
1.0       GENERAL INTRODUCTION
All over the world statement, thinkers and demographers have been concerned with the rapid growth of population rate in the last four decades. A current rate of growth. The world population as at 21 May, 2010; the human population of the world is estimated by the United State Census Bureau to be 6822, 200,000.
Annual birth have leveled at about 134 million per year since their peak at 163 million in the late 1990’s and an expected to remain constant. However, deaths are only around 57 million per year and are expected to increase to 90 million by 2050, because births out number deaths, the world’s population are expected to reach 90 million between 2040 and 2050.
The rapid increase in human population over the course of the 20th Century has raised concerns about whether earth is experiencing over population and scientific consensus that is the current population expansion and accompanying increases in usage of resources are linked to threats to the ecosystem. Since as rising level of atmosphere Carbon oxide, global warming and pollution.    
Due to this pace of growth, strategies were undertaken to curb the problem. This led to the emergency of “Contraceptive” drug. Other terms commonly used includes birth control, fertility regulation, Planned Parenthood and responsive parenthood, Huge amount have been spent on family planning and family planning programs just in a bid to popularize its importance and adoption in tertiary institution. Therefore, it is expected that there is a widespread knowledge of contraceptive drug among adolescent especially female student.
Although, the adoption of there information varies, some have interesting and positive attitude due to passive orientation while others see the usefulness and go a head to practice it. Sexual activity is particularly high among unmarried youth and those who happen to use contraceptive and those who did not use with social concern in mind but more for personal reasons such as to avoid illegitimate births.
Contraceptive drugs should not only be seen in the view of population reduction alone but also in line with the misfortune that is associated with indiscriminate sexual intercourse. A growing population of adolescent not only initiates sexual intercourse at early stages, but also engages in having multiple sexual partners. Hence a high incidence of illegally induced abortion. In most cases, restrictions on abortion force women to rely on illegal abortion and as most young people are poor, they often use unqualified abortimist, which leads to frequent severer health consequence such as sterility and death.
It is therefore time for the society to recognize that the health and even the lives of its young ladies must not be scarified in an attempt in an attempt to prevent their sexual activity. In most developing countries young ladies get married later and more start sex before marriage. This exposing them to the risk of unwanted pregnancy and unwanted sexually transmitted diseases (STD’s) including HIV/AIDS. In these countries 20% to 60% of young women pregnancies and births are unwanted most coming sooner than planned. These pregnancies put young women health at risk through child bearing or unsafe abortion. Increasingly, early parenthood means lost education as will as with life long loss of earnings. Evidence in Nigeria shows that induced abortion increasing and is considered to be a major cause of material mortality which quite high in Nigeria.
The question to ask ourselves now is, has the introduction of contraceptive use in any way helped to stem the rate of unwanted pregnancies and sexually transmitted diseases (STD’s) among women especially female student in the tertiary institution? The answer to this question abore is not affirmative.
1.1       BACKGROUND OF SURVEY AREA
The Osun State Polytechnic, Iree was established on 12th October, 1992. it was one of the satellite campuses of the Polytechnic Ibadan before it become an autonomous institution. Faculty of science was one of the structures inherited from the Polytechnic Ibadan before being developed to meet its present status.
At the inception, the faculty consists of the following these departments namely;
-               Science Laboratory Technology
-               Computer Science  
-               Mathematics and Statistics  
Later Food Science and technology and Applied Science were established but very recently, the computer science department was reshuffled to another newly created faculty, the faculty of information and communication technology.
It is however pertinent to state that faculty of science is one of the oldest faculties in the institution and its importance to the polytechnic system is undoubtfully enormous. It is robust intellectually socially and politically. Faculty of science is the oldest faculty of the six existing faculties in the institution; the faculty is playing an important role in the institution and the nation as a whole because of its contribution to academic and technological advancements. The faculty consists of five departments, namely Department of Applied science, Food science and technology, Mathematics and statistical, Micro biology and Department of science laboratory technology.