Joseph Stalin (1878-1953) was the dictator of the Union of Soviet Socialist Republics (USSR) from 1929 to 1953. Under Stalin, the Soviet Union was transformed from a peasant society into an industrial and military superpower. However, he ruled by terror, and millions of his own citizens died during his brutal reign.
Most of the polled obstetrician-gynecologists believe pregnancy begins when the sperm fertilizes the egg. But a minority say it doesn't begin until a week later when the fertilized egg implants in the uterus -- the definition given by the American College of Obstetrics and Gynecology (ACOG).
Morning sickness is considered the first symptom of pregnancy and generally starts during the first trimester. For most women, morning sickness symptoms Learn about the symptoms of morning sickness. can start as early as the 3rd week of pregnancy, but it's more common between the 5th-8th week of pregnancy.