How long after pregnancy will morning sickness occur? Morning sickness refers to nausea, vomiting and other uncomfortable symptoms that women experience after pregnancy. This is a common reaction in early pregnancy that can continue into later stages of pregnancy, but its severity and duration vary from person to person. So, how long after pregnancy will morning sickness appear? The following is a detailed explanation of the four aspects: The time when morning sickness begins. From a physiological point of view, morning sickness usually begins to appear in the 6th to 8th weeks of pregnancy, and some women will feel the symptoms of morning sickness around the 4th week of pregnancy. . Less commonly, a small number of women are pregnant