Anonymous: I’m very sorry to hear your story. However, readers should be aware that no amount of genetic testing will find every genetic disorder, since every one needs to be tested for separately, and it is implausible to test for every one.
Moreover, Dor yeshorim is much better than other labs, since they are attuned to the specific mutations that ashkenazi jews have. Anecdotaly, my sister in law knows someone who was tested by a non-dor yeshorim lab and then had children with tay sachs even though they were tested for it.