This study evaluates the timeliness and adequacy of antenatal care (ANC) visits in 18 Sub-Saharan African (SSA) countries using the most recent standardized Demographic and Health Survey (DHS) data from 2016–2021. The findings reveal that only 41.2% of women received timely ANC visits, and 10.4% had adequate ANC visits (at least eight). Women who wanted their pregnancies, were in their first birth order, had mobile phones, or were enrolled in health insurance schemes were more likely to start ANC early. Conversely, women living in lower poverty areas, with higher education, and who initiated ANC early were more likely to have adequate ANC visits. The study also found that women who started ANC in the first trimester were 4.26 times more likely to have adequate ANC visits. Factors such as pregnancy planning status, birth order, having a mobile phone, and enrollment in health insurance schemes were significant predictors of early ANC initiation. The study highlights the need for improved access to health insurance, mobile phone distribution, and education to enhance ANC coverage and quality in SSA. Governments should prioritize interventions that increase women's autonomy and economic capability to improve health-seeking behavior during pregnancy. The findings underscore the importance of aligning ANC practices with the latest WHO recommendations to ensure timely and adequate care for pregnant women in SSA.This study evaluates the timeliness and adequacy of antenatal care (ANC) visits in 18 Sub-Saharan African (SSA) countries using the most recent standardized Demographic and Health Survey (DHS) data from 2016–2021. The findings reveal that only 41.2% of women received timely ANC visits, and 10.4% had adequate ANC visits (at least eight). Women who wanted their pregnancies, were in their first birth order, had mobile phones, or were enrolled in health insurance schemes were more likely to start ANC early. Conversely, women living in lower poverty areas, with higher education, and who initiated ANC early were more likely to have adequate ANC visits. The study also found that women who started ANC in the first trimester were 4.26 times more likely to have adequate ANC visits. Factors such as pregnancy planning status, birth order, having a mobile phone, and enrollment in health insurance schemes were significant predictors of early ANC initiation. The study highlights the need for improved access to health insurance, mobile phone distribution, and education to enhance ANC coverage and quality in SSA. Governments should prioritize interventions that increase women's autonomy and economic capability to improve health-seeking behavior during pregnancy. The findings underscore the importance of aligning ANC practices with the latest WHO recommendations to ensure timely and adequate care for pregnant women in SSA.