It is very crucial to discover congenital heart disorders (CHDs) as early as possible during pregnancy. Early detection of CHDs ensures a seamless transition between prenatal and postnatal treatment, greatly reducing mortality and morbidity rates and assisting families in making educated choices regarding the pregnancy. For better results, medical intervention must begin as soon as possible after delivery. To improve prenatal treatment and outcomes, it is crucial to quantify the fetal cardiac, ventricular, and atrial dimensions accurately in order to monitor and understand the fetal adaptability to unfavorable settings. One of the most useful noninvasive techniques for assessing the cardiac architecture of fetuses during the prenatal stage is still two-dimensional (2D) echocardiography. Currently, one of the most useful noninvasive techniques for measuring the cardiac architecture of fetuses throughout pregnancy is two-dimensional (2D) echocardiography. Studies examining measures of normal heart anatomical dimensions are few, particularly in the Egyptian population. The lack of baseline fetal cardiac dimensions makes it challenging to precisely identify and track minute changes in heart morphometry in response to a challenging environment