This study examined the influence of migration on fertility desire and family size among migrant and non-migrant couples in Nigeria, with particular attention to post-pandemic livelihood challenges. Using a descriptive survey design, 150 couples from Bamidele Olumilua University of Education, Science and Technology, Ikere, Ekiti State, were sampled through stratified and purposive random techniques. Quantitative data were collected via a validated questionnaire, while qualitative insights were obtained through semi-structured interviews with 60 women. Results indicate that both fertility desire and family size were higher among migrant couples compared to non-migrant couples, although correlation analyses showed no statistically significant relationship between migration status and these outcomes. Findings highlight the complex interplay of socio-economic status, cultural norms, and exposure to new environments in shaping reproductive decisions. The study underscores the need for targeted family planning initiatives, culturally sensitive reproductive health education, and strengthened social protection measures for women, particularly in the context of economic vulnerabilities exacerbated by the COVID-19 pandemic. These insights are critical for policymakers aiming to promote sustainable population management and equitable access to reproductive services in Nigeria.