Objective: Pregnancy is a period in women’s life where psychological, biological and emotional changes occur in women. Pregnants are worried about the intensified feeling of a possible danger or a bad situation that can occur during labor and postpartum. The aim of study was to investigate anxieties related to delivery and postpartum period of pregnant women during various gestational weeks. Methods: This descriptive and cross-sectional study was carried out on 273 pregnants who applied for control at a Gynecology and Obstetrics Polyclinic and the Obstetrics Service of a university hospital between January-March 2017. The data was collected using Personal Information Form and Fear of Childbirth and Postpartum Period Scale (FCPPS). Results: It was found that total mean scores of Scale of Fears of Childbirth and Postpartum Period of the pregnant women for the first, second, and third trimesters were 4.2±2.8, 4.9±3.0, and 6.1±2.0, with a statistically significant intergroup difference (p<0.001). In all trimesters, mean score of FCPPS statistically significantly increased in younger pregnants (p<0.001). It was found that the mean scores of FCPPS were significantly higher in the first, and second trimesters, primipara compared to multiparous pregnants in the same gestational period (p<0.001). It was found that the mean scores of FCPPS were significantly higher in the first, and second trimesters of primiparas compared to the multiparas in the same trimesters (p<0.001). Conclusions: It was found that generally pregnants had moderate anxiety level for their pregnancies, mean FCPPS scores of the pregnants in their third trimesters were higher than those in their first, and second trimesters.