High blood glucose, also called blood sugar, can harm your baby during the first weeks of pregnancy, even before you know you are pregnant. If you have diabetes and are already pregnant, see your doctor as soon as possible to make a plan to manage your diabetes.
These are the only veins in the body that carry fresh, oxygenated blood. Blood leaves the heart from the left ventricle through the artery called the aorta. The aorta has several branches into other arteries that are carrying blood away from the heart and to the body tissues.
Blood vessels which carry blood back to the heart from the rest of the body are called veins. The main vein is the vena cava, which carries deoxygenated blood to the right atrium. The pulmonary vein carries oxygenated blood from the lungs to the left atrium. The arteries are blood vessels which carry blood away from the heart.