Morning sickness is characterized by nausea with or without vomiting. It is most common during the first trimester, sometimes beginning as early as two weeks after conception.

When to see a doctor

Contact your pregnancy care provider if:

  • The nausea or vomiting is severe
  • You pass only a small amount of urine or it's dark in color
  • You can't keep down liquids
  • You feel dizzy or faint when you stand up
  • Your heart races
  • You vomit blood
Sep. 18, 2014

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