Background:Cardiac diseases complicate about 1% of pregnancies in women. Pregnancy is a natural stress test and the cardiovascular system must undergo major changes to its structure to sustain tremendous increases in blood volume. According to the National Centre for Health Statistics, almost half of adults aged 20 and older have at least one risk factor for cardiovascular disease. Detailed assessment of patient throughout pregnancy may lead to initial discovery of heart diseases. Hence, the present study was conducted at Tertiary Care Hospital to study the prevalence of heart diseases in pregnancy, and is to assess the Sociodemographic Characteristics and Early Pregnancy Behaviors among Pregnant Women with Heart Disease