We build on previous stress theories by drawing attention to the concept of anticipatory couple-level minority stressors (i.e., stressors expected to occur in the future that emanate from the stigmatization of certain relationship forms). A focus on anticipatory couple-level minority stressors brings with it the potential for important insight into vulnerabilities and resiliencies of people in same-sex relationships-the focus of our study. We use relationship timelines to examine stressors among a diverse sample of same-sex couples (N = 120). Respondents in same-sex relationships anticipated stressors that may not be unique to same-sex couples (e.g., purchasing a home together), but labeled many of their anticipatory stressors as reflecting the stigmatization of their same-sex relationship, in and of itself. Respondents rated anticipatory minority stressors as more stressful than other anticipatory stressors. Moreover, stressors varied by gender, age, and relationship duration, although not race/ethnicity or geographic site. This analysis is a preliminary step in examining how unique anticipatory couple-level minority stressors function as determinants of relationship quality, mental and physical health, and health disparities faced by sexual minority populations. Attempts to understand current stress levels should consider anticipatory stressors, alongside past and current life events, chronic strains, daily hassles, and minority stressors, as these processes are impossible to disentangle and may be consequential for current well-being.Key Words: Family; Gender and Sexuality; Mental Health; Sexuality; Stigma Social stress theories have been leveraged to understand disparities for minority populations, including sexual minorities, racial/ethnic minorities, gender minorities and women, and the intersections between these categories (Frost 2017, Meyer 2003, Pearlin and Bierman 2013. The stress process model theorizes how socially patterned stressors contribute to enduring strains which erode one's sense of self and lead to symptoms of distress (Pearlin et al. 1981). For example, those with low socioeconomic status (e.g., lower educational attainment) suffer more chronic exposure to stressors, helping to explain their higher rates of morbidity and mortality A focus on anticipatory couple-level minority stressors brings with it the potential to gain important insight into vulnerabilities and resiliencies of people in same-sex relationships-the focus of our study. We adopt an innovative research method, relationship timelines , to examine anticipatory stressors within and across a diverse sample of same-sex couples.Relationship timelines are graphic representations of the course of a relationship, wherein respondents note key events and periods-both in the past and the anticipated future-and categorize or appraise the degree to which those events and periods were, are, or are likely to be stressful. We specifically address:1. What types of stressors do partners in same-sex relationships anticipate for their...