like the previous posted said, sometimes baby is in a position to were they cannot see baby very well which makes them unable to get all the pictures
they need. Obviously if the umbilical cord wasnt there, baby
wouldnt be either! I remember the docs couldnt get a good profile pic of my daughter and couldnt get a good pic of her face and they made me redo it and everything was just fine. Try not to worry, i do know what you are going through though! Try to relax and think positive!