When it occurs: Encyclopedia II - Morning sickness - When it occursMorning sickness is not confined to the morning: nausea can occur at any time of the day, though it most commonly occurs soon after waking, perhaps due to the fact that the stomach is empty at that time.
Morning sickness usually starts in the first month of the pregnancy, peaking in the 5th to 7th weeks, and continuing until the 14th to 16th week. For 50% of all sufferers, it ends by the 16th week of pregnancy.
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See also:Morning sickness, Morning sickness - When it occurs, Morning sickness - Causes, Morning sickness - Treatments, Morning sickness - Associations with miscarriage risk Read more here: » Morning sickness: Encyclopedia II - Morning sickness - When it occurs |