The study aimed to identify psychological stress and its relationship to psychological resilience among a sample of pregnant women in Muscat Governorate. It also investigated any differences in psychological stress and psychological resilience according to the variables of educational qualification, pregnancy order, age, and economic level. A sample of 381 pregnant women was selected based on the convenience sampling method. To assess stress, a pregnancy experience scale was used, and a psychological resilience scale was implemented to determine the level of resilience. The validity, and reliability, of scales were confirmed. The results showed that the level of psychological stress among pregnant women is average on the total score of the scale and high on the total score of the psychological resilience scale. In addition, there were no statistically significant differences for the psychological stress scale in the light of the educational qualification variable, age, and economic level, while there was a statistically significant difference in the light of the pregnancy order variable. Statistically significant differences were also found for the resilience scale due to the educational qualification, age, and pregnancy order, but no differences in the economic level In addition, the results found that psychological resilience could be predicted through psychological stress. Psychological resilience explained 1.5% of the variation in stress levels of pregnant women.