Utilizing antenatal care (ANC) is vital for maternal and neonatal well-being, especially in low-resource settings with healthcare challenges. Identifying factors impacting antenatal care this context, t of current situation in Sudan is crucial for developing strategies to improve maternal care. This study explores ANC utilization amidst COVID-19, security issues, and healthcare instability in primary health care centers in a resource-constrained environment, aiming to enhance maternal care access and quality. This is a mixed-methods study. Quantitative data were collected through a retrospective analysis of ANC attendance records before and during the pandemic. Demographic variables were analyzed for their association with ANC utilization. In-depth interviews were conducted to collect qualitative data from pregnant women and healthcare providers. These interviews focused on capturing the experiences, perceptions, and obstacles associated with antenatal care services during the pandemic and within the healthcare system challenges. Preliminary quantitative analysis revealed a significant decline in ANC utilization during the pandemic. Fear of COVID-19 infection, disrupted transportation, and resource constraints have emerged as significant barriers to ANC attendance. The qualitative findings highlighted the impact of security challenges on healthcare access and the adaptation strategies employed, including mobile ANC clinics and telehealth consultations. This study illuminates the intricate landscape of ANC utilization in the face of a pandemic, security instability, and healthcare system vulnerability. Policymakers and stakeholders should collaborate to strengthen healthcare systems and ensure the continued provision of essential maternal health services during challenging times.