Objective: The aim of this study was to determine the relationship between conscious awareness, depression, anxiety and stress in pregnant women. Method: This study has been designed as a descriptive and cross-sectional study and the sample of this study consisted of 282 pregnant women who were hospitalized at maternity clinic or applied to obstetrics and gynaecology clinic of a education and research hospital in Aksaray and agreed to participate in the study between 15 July-15 September 2018. Data were collected using the Pregnant Information Form, Mindful Attention Awareness Scale (MAAS) and Depression, Anxiety and Stress Scale (DASS). Descriptive statistics, Mann- Whitney U test, Kruskal-Wallis test and Spearman Correlation test were used in data analysis. Results: In this study, mean MAAS score of pregnant women was 64,40±11,86 points, while mean scores for depression (11.41±7.17) anxiety (13.20±6.61), and stress (13.83±7.41), were also calculated. It was determined that the average mindful attention awareness scores of pregnant women with high levels of depression, anxiety, and stress were relatively lower (p<0.05). It was also determined that there was a negative and moderate relationship between mindful attention awareness and depression (r=-0.348, p=.000), anxiety (r=-0.318, p=0.000), and stress (r=-0.372, p=0.000). The mean DASS scores of pregnant women were found to be negatively affected by the extended family structure, history of miscarriage, presence of health problems and being in the first trimester (p<0.05). Conclusion: As a result, as the mindful attention awareness scores of pregnant women increase, their depression, anxiety, and stress scores decrease. Based on these findings, it is suggested to plan and implement mindfulness-based interventions for pregnant women suffering from depression, anxiety, and stress.