Abstract: Preconception counseling plays a pivotal role in promoting healthy pregnancies and improving maternal and fetal health outcomes. This review article discusses the significance of preconception counseling, emphasizing its importance in identifying and addressing potential risk factors before conception. It explores the role of obstetric and gynecological (OBG) nurses in providing comprehensive preconception care, including education, risk assessment, and support to women and couples planning pregnancy. The article also highlights key considerations and strategies for effective preconception counseling to optimize maternal and fetal health.