1 Identify processes and methods for derivatively classifying information. 2  Identify authorized sources to use when derivatively classifying information.  Apply authorized sources to derivatively classify information based on the concepts of contained in, revealed by, and compilation.
Blood Test Can Tell Fetus's Sex at Just 7 Weeks. A simple blood test can determine a baby's gender as early as seven weeks into pregnancy, a new study says â far earlier and far less invasive than other options.
However, even at this point itâs too early to take a pregnancy test. At this point, it might be close to three weeks after the first day of your last period. Seeing as your hCG levels take as much as three days to double, you might not be able to take a test that shows a positive result right away. However, you can take a pregnancy test as early as six days prior to the date on which you expect your period to arrive. While some women might be able to get a positive pregnancy test result prior to this, this is the earliest recommended day on which to test.