That you are not a carrier for any genetic diseases. DS is not a disease, but a chromosomal abnormality, and the most common one at that. But as others have said, the blood screen is not very conclusive, especially for women at higher risk to begin with. It is much more likely that your child won't have DS. These tests are limiting, they can't tell us everything. The fact that your odds came back lower than the odds for someone else your age is a GOOD thing. please focus on that.