Purpose: This study explores working mothers’ perceptions of fairness in work and home environments through real-world social media discussions. It examines how these perceptions shifted due to the COVID-19 pandemic. Design/methodology/approach: Using a naturalistic approach, we analyzed 13,560 comments from 4,076 unique users on Reddit to convert qualitative data into quantitative variables. A nonparametric factorial ANOVA was employed to assess the relationship between fairness perceptions and the impact of the COVID-19 pandemic on these perceptions in both work and home settings. Findings: The analysis revealed that working mothers predominantly express negative perceptions of fairness in both environments. Contrary to initial expectations, the pandemic did not exacerbate these perceptions. However, conversations involving both work and home contexts showed a more positive tone, suggesting the benefits of remote work scenarios introduced by the pandemic. Originality/value: This study uniquely applies sentiment analysis to naturalistic social media data, offering real-time insights into how working mothers discuss fairness. Unlike traditional survey methods, this approach captures daily lived experiences, particularly in a crisis context, revealing new aspects of the work–family conflict.