Percentage of pregnancy before marriage increases dramatically every year. This needs to be taken seriously by the authorities due to a negative impact in terms of psychology, which may ultimately affect the country's human capital. This study aims to identify factors of depression, loneliness and social support among women who got pregnant before marriage. The study uses quantitative methods to distribute the questionnaire to respondents. A total of 215 pregnant women before marriage were involved in this study. The results showed that levels of depression, loneliness and social support were at a moderate level. The study found a significant relationship between depression and loneliness (r = .500, p <0.05), there was no significant relationship between depression and social support. However, there is a negative and significant relationship between loneliness and social support (r = -.164, p <0.05). Linear Regression Test results show the predictive factors for depression is loneliness (R ² = 26.6, F (2,212) = 37,549, p <0.05), which predicts significantly more compared to social support (β = .111, r> 0.05). The results showed that lonely people are more likely to suffer from depression. In addition, individuals with poor social support from family, friends and also people around them are more likely to suffer more serious loneliness. Therefore, a good social support is able to prevent women who got pregnant before marriage to experience loneliness and depression