(1) Male and female embryos exhibit few anatomical differences until after the second month of development. Several common sex hormones continue to function into adulthood, including FSH and LH. Describe where these hormones come from and what their role is in adult males and females, with reference to the reproductive structures.

(2) Pregnancy can be detected several days post-implantation, based on a hormone level test. What is the hormone that is tested for in pregnancy, and what is its role? How is the test administered, and who may perform it?