BACKGROUND: To our knowledge, no studies exist on the influence of nomadic pastoralist women's networks on their reproductive and sexual health (RSH), including uptake of modern family planning (FP). METHODS: Using name generator questions, we carried out qualitative egocentric social network analysis (SNA) to explore the networks of four women. Networks were analyzed in R, visuals created in Visone and a framework approach used for the qualitative data. RESULTS: Women named 10-12 individuals. Husbands were key in RSH decisions and never supported modern FP use. Women were unsure who supported their use of modern FP and we found evidence for a norm against it within their networks. CONCLUSIONS: Egocentric SNA proves valuable to exploring RSH reference groups, particularly where there exists little prior research. Pastoralist women's networks likely change as a result of migration and conflict; however, husbands make RSH decisions and mothers and female neighbors provide key support in broader RSH issues. Interventions to increase awareness of modern FP should engage with women's wider networks.