Pregnant women who've heart conditions would require special care during the trimesters. Though pregnancy stresses your ticker, still many women who've heart conditions deliver healthy babies. Your blood volume increases by 30-50 percent while you are pregnant in order to nourish your fetus, your ticker pumps more blood each minute and your heart rate increases. Labor and delivery just adds to the workload of your ticker, and it takes a few weeks after delivery for the stresses on the ticker to come back to the levels they were before you conceived. Some heart conditions, such as narrowing of the mitral valve or aortic valve- can cause more complications than others do. Some heart conditions require major treatments like heart surgery before you try to conceive. Some women may have the rare congenital condition Eisenmenger's syndrome or high blood pressure (HBP) that affects the arteries in the lungs and the right side of the ticker, doctors recommend against pregna...