Can being pregnant affect your heart condition?

Whenever you r pregnant , all your normal body requirements increase to sustain the developing little one inside the womb. Naturally the blood circulation also increases to carry greater amount of nutrition....and for the increased circulation the heart needs to work harder than it normally does. Now since you have a defect in your heart, you must be sure that the organ is not over exerted. So visit a cardiologist immediately and ALSO inform the gynecologist about your heart condition.