Test results...

I got my test results today for my maternal screening (downs, trisomy 18, ect.) Has anyone else gotten their test results back and what are your odds? I feel like my down syndrome risk number was a little low. I'm 26 and on the test is said for my age the result is 1 out of 960. Then for down syndrome risk all together my score was 1 out of 220. (the cut off for a positive result is 1 out of 150) I feel like my result was a lot lower than it should be, but my result was still considered negative. For my trisomy 18 result I scored a 1 out of 99,000. My doctor and the lab considered my results normal, I just can't help feeling a little worried. I don't like the odds of 1 out of 220 that my baby could have downs.