This paper puts a special accent on the Roma female reproductive population and its behaviour concerning the formation and size of the family. A survey was conducted in the area of Shuto Orizari, the only Roma governed community in Europe, on respondents from the female reproductive population divided into three age groups. For the analysis of the variance of the means of the three chosen groups were used the standard statistical tests and the one-way ANOVA test was used for testing the eight hypotheses for the equality of the means of the three independent specimens. A chi-squared test of independence between the two variables was made on the whole sample. The research and the gained results about the factors that determine the demographic behaviour of the Roma female reproductive population are expected to find a way to improve the overall situation and to use it in creating demographic policies.