Hilso - good luck with your scan. The nuchal scan was the first time I was able to relax about this pregnancy. After that we began to tell people and then it all felt real and I was able to smile. I hope the same happens for you.
Buttrfly - I am in the mountains of Colorado, at about 9,000 ft elevation.
flou - I never tried Vit. B but I tested negative for blood clotting disorders. My doc did say that usually it runs in the family. Honestly, you are probably a good candidate for Aspirin and Heparin shots. I forget, have you been tested yet for blood clotting disorders?