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.
You can do a pregnancy test from the first day of your missed period. If you have regular periods, youâll probably know when this is. If youâre not sure when your next period is due, you can do a pregnancy test 21 days (three weeks) after you last had unprotected sex. See Further information below for links to more about how your menstrual cycle works.