Maternal health is a critical aspect of public health in Nigeria, with secondary school teachers playing a significant role in providing care and support to pregnant women and new mothers. A mixed-method approach was employed, including a cross-sectional survey of 200 secondary school teachers and qualitative interviews with 15 focus group participants to understand their experiences and needs regarding maternal health insurance. The study found that only 35% of surveyed teachers had access to comprehensive maternity care insurance, highlighting significant disparities in coverage rates. This contrasts sharply with the national average, suggesting a need for targeted policy interventions. Maternal health insurance coverage among secondary school teachers is inadequate and disproportionately affects women, particularly those from lower socio-economic backgrounds. Policy recommendations include increasing government funding to expand maternal health insurance coverage and implementing community-based support programmes. maternal health insurance, secondary school teachers, gender equality policies, Lagos State, Nigeria Treatment effect was estimated with $\text{logit}(p_i)=\beta_0+\beta^\top X_i$, and uncertainty reported using confidence-interval based inference.