More and more women are now planning the pregnancy in advance. This allows us to prepare for the serious changes that occur during pregnancy in the body and avoid many problems. Women who smoke during pregnancy increases the risk of heart disease in their child, according to Dutch researchers. Children of smoking mothers is observed hardening of the arteries and consequently an increased risk of atherosclerosis in future. In addition, smoking during pregnancy can lead to the threat of low birth weight. The key to successful childbirth and child health is also a timely start of the procedure of reference or observation pregnancy. This concept includes the systematic activities carried out by a particular plan under the supervision of a physician who carries out maintenance of pregnancy. It is very important to the timely execution of all necessary surveys and competent interpretation. You should regularly throughout pregnancy poseshat doctor, observing the pregnancy, to perform all of its recommendations, and discuss with him your concerns.