Materials and methods: This cross-sectional study (descriptive - analysis) is performed on 400 pregnant women who had referred to the laboratories of Shiraz. Ten laboratories were randomly selected from different parts of Shiraz. The subjects were interviewed during the period of three months they referred for the result of their pregnancy test. Questionnaire included demographic information, how to use the methods of contraception, how to treat women with unwanted pregnancies, and the history of pregnancy. The chi-square tests, t-test, and logistic regression were utilized in order to compare two groups of women under 35 and over 35 and also to determine the factors related to unwanted pregnancies.