My daughter is pregnant, about 12.5 weeks. She had a blood screening test for Down Syndrome, she just called me very upset. They just called her with the results. The numbers are 1-270 they told her this was a normal negative number but her's was 1-268 which is positive. Does anyone know exactly what this means. I'm upset, she's upset and I'm not sure if we should be upset. Thanks for any help.