At one month, the fertilized egg grows and a water-tight sac forms around the egg which helps cushion the growing embryo.  The placenta also develops which transfers nutrients and wastes from the mother to the baby.  A primitive face also takes form with large dark circles for eyes.  Blood cells are taking shape, and circulation will begin.  The tiny "heart" tube will beat 65 times a minutes by the end of the fourth week.  Please pray for your growing baby and his mother.