This document summarizes cardiac diseases in pregnancy. It discusses how heart diseases complicate over 1% of pregnancies and are a leading cause of indirect maternal death. Normal cardiac changes in pregnancy include increases in cardiac output, blood volume, and venous pressure. Women with cardiovascular diseases should receive pre-pregnancy counseling. During pregnancy, signs of heart disease include dyspnea, edema, murmurs, and arrhythmias. Major forms of heart disease discussed are rheumatic, congenital, and cardiomyopathy. Management involves early diagnosis, optimizing care between obstetric and cardiac teams, and ensuring hospital delivery. Labor and delivery management aims to await spontaneous labor and uses regional anesthesia, antibiotics, and active management of the third stage