text: <unk>  is a bluish discoloration of the cervix, vagina and vulva caused by venous congestion. It can be observed as early as  6-8 weeks after conception, and is often used as an early<unk>  of pregnancy.
  These color changes were discovered in approximately 1836 by French doctor Etienne Joseph Jacquemin (1796-1872).
option_0: Chadwick's sign
option_1: Adson's sign
option_2: Rigler's sign
option_3: Cullen's sign
option_4: Goodell's sign
option_5: Pemberton's sign
option_6: Hegar's sign
option_7: Rovsing's sign