For over half a century, research has focused on the importance of maternal-infant interactions and how communications between infants and their primary care givers shape the individuals they become and the relationships they maintain (Ainsworth, Blehar, Waters, & Wall, 1978; Bowlby, 1978; Deutsch, 1945; Sümer & Cozzarelli, 2004). However, it is only recently that studies have begun to focus on the importance of this bond during prenatal development. Due to this shift in focus among the literature being relatively new, still very little is known about the nature of maternal-fetal attachment specific to twin gestations and how it compares to the experiences of forming a relationship with a fetus in a singleton pregnancy. This study was designed to help contribute to the narrow knowledge base regarding maternal-fetal attachment differences between twin and singleton pregnancies. Its purpose was to identify and evaluate differences in the patterns of prenatal attachment between mothers of twin pregnancies and mothers of singleton pregnancies, and to examine various psychosocial factors to evaluate their influence on attachment in twin and singleton pregnancies. Although the study's findings supported the hypothesis that singleton mothers have higher prenatal attachment as assessed by the PAI, the study shed little light on why this was the case. Moreover, many of the variables shown to be significantly correlated with prenatal attachment among the literature were not shown to be part of the explained variance within the current study. Limitations to this study and differences in methodologies between the literature and this research may have accounted for these differences. Conclusions, implications, and recommendations for future research are discussed.