Introduction: It is undeniable that the NPC plays a crucial role in the development process of nations; “because maternal and neonatal deaths, which hinder economic growth and cause global losses in productivity, can be avoided thanks to ANC, which is all the more effective if it is early and regularly repeated. This consultation effectively contributes to avoiding “complications of pregnancy and its consequences, which are a major challenge for the health of women of childbearing age; and the leading global cause of morbidity, disability and mortality in this target, especially in developing countries. This research seeks to determine the repercussions and explanations explanations of the beginning late arrival of women to prenatal consultation. Method: This study is quantitative of the cross-sectional descriptive correlational type, carried out at the MAZIBA health and maternity center, more precisely in the Bonhomme district, in the commune of Matete, city of Kinshasa, in the Democratic Republic of Congo, during the period from January 29 2022 to April 8, 2023. It used the survey method, combined with the interview technique and a survey questionnaire as the data collection instrument. Results: The late onset of CPN remains a major public health issue in the study region. The late arrival of pregnant women at the CPN is influenced by different variables such as neglect, fatigue, distance, lack of financial means, high cost of care, poor reception, lack of space, lack of chairs or benches. The consequences linked to late arrival at the ANC are on two levels: the consequence for the pregnant woman and for the fetus. In the pregnant we obtained an average of 18.7% and 31.3% in the fetus. This study demonstrated that there is a significant statistical relationship between It also appears that there is a significant statistical relationship between personal, socio-economic, organizational, cultural factors and the consequences in the fetuses (p = 0.00. P=0.01, and p=0.00). Conclusion: Thus, healthcare professionals have the opportunity to provide ongoing education on the importance of starting prenatal care visits early to avoid adverse pregnancy outcomes, taking into account all the elements mentioned.