Pregnancy reactions usually start around 6 weeks of pregnancy. Pregnancy reactions refer to symptoms such as nausea and vomiting, dizziness, weakness, easy fatigue, and aversion to oil and grease during early pregnancy. It usually starts around 6 weeks of pregnancy and lasts until around 10-12 weeks. At this stage, pregnant women usually feel mentally ill and easily fatigued, which is a sign of normal development of the fetus in the uterus. A normal pregnancy response means that the chorionic gonadotropin level in the pregnant woman’s body is within the normal range. If the pregnancy reaction suddenly disappears or weakens, you need to be alert to the possibility of fetal arrest. In addition, the occurrence of pregnancy reaction is related to the individual’s physical condition, and there are some pregnant women who do not have pregnancy reaction during early pregnancy. After the onset of pregnancy reaction, you should eat less greasy and stimulating food, try to eat a light diet, pay attention to rest, and avoid exertion.