Ultrasound is widely used in pregnancy; it is part of routine care and is used for screening during pregnancy. Prenatal ultrasound is unique among other diagnostic tests because it allows parents to have direct access to embryo images; thus, it is a much wanted medical help. At present, ultrasound has become an essential part of modern prenatal care, both in developing countries and in industrialized countries. On the other hand, women often believe that ultrasound is an essential part of prenatal care and tend to have an ultrasound image as the first photograph of their child. Ultrasound in pregnancy and childbirth has a tremendous value, two of which are very important in this regard; i.e. determining the correct course of pregnancy and the discovery of fetal abnormalities. Studies have shown that ultrasound can reveal at least 35-50% of major embryonic anomalies with a specificity of 90- 100%. Also, the exact timing of pregnancy may affect the outcome of pregnancy.