I am sorry it is so stressful. Just remember you don't have to have all those ultrasounds - they don't help the baby - and she is so little they don't know things for certain. I know we all just 'want to know' as much as we can - but life is a mystery for all we can discern.
National Geographic made a fantastic DVD "In the Womb" which is amazing to watch - to see each stage of the little ones development. At six weeks her eyes, ears and mouth have begun to form - and, yes, she has a regular heart beat - her spinal column is apparent.
The chest and abdominal cavities are continuing to form. Your baby’s jaws are appearing, the lung buds are forming, circulation is being established.
The tiny buds that form the arms will suddenly appear this week. Liver and pancreas buds are also present. The aorta of your baby’s heart is forming.
This week marks a critical period in the development of your baby’s gastrointestinal tract - his intestines are beginning to form from a portion of the yolk sac.
All the fear you feel - matches the love you already have for your little one who you cradle and protect inside of you. Allow yourself to love the little one - even if it is for only a few short weeks. My husband spoke to each of our babies in the womb each night.
With love and hope,
E.