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.
All in all, on average, most women test positive 13.5 days after ovulation or at the time they expect their monthly periods. Notes: Even with the above tests, the best time to have a pregnancy test is usually three weeks after you have had unprotected sex or when your periods are late.