The readings for gestational sac size, yolk sac size, embryonic crown-rump length and heart rate are all in the normal range.
Many years ago a medical study found a significantly higher rate of miscarriage in women over 35 years who were sitting in front of computer terminals during the first three months of pregnancy. It is currently recommended that pregnant women should spend no more than 3 hours a day in front of a computer screen in the first three months of pregnancy.