This is a nice 3-D image of a fetus at mid-pregnancy. Muscle and fat have yet to be made so it gives the appearance of skin being placed over bone. The dark line above the forehead is the midline suture and is a normal finding at this time. Can you count the fingers? The eyes, lips and nose are all normal. The eyelids are shut and do not begin to open and close for another couple weeks. This is an important time in the pregnancy. At 24 weeks the lungs are mature enough to support the life of the fetus is it is born.