After pregnancy, due to the change of hormone level in the body, the physical pressure and pull of the uterus will cause some clinical reactions in women during pregnancy, such as menopause, early pregnancy reaction, frequent urination, breast changes, etc. Among them, early pregnancy nausea and vomiting and breast pain are the most obvious, pregnant women are more uncomfortable at this stage, especially the first-time mothers. Most of the early pregnancy reactions appear around 6 weeks after menopause, such as cold, dizziness, weakness of limbs, drowsiness, lack of appetite, nausea and vomiting, dislike of greasy and sour food, etc., which mostly disappear on their own around 12 weeks after menopause; at the same time, pregnant women can feel breast swelling and pain at this stage, the volume of breast gradually becomes larger, the nipple areola increases, the coloring deepens, and Montserrat’s nodules (dark brown nodules around the areola) may appear. In early pregnancy, 50% of pregnant women will experience nausea and vomiting, 25% of them only have nausea without vomiting, most of them start in the 4th week of pregnancy and are most severe around the 9th week of pregnancy, 60% of them gradually reduce or disappear after the 12th week of pregnancy, 91% of them are relieved after the 20th week of pregnancy, about 10% of pregnant women will have nausea and vomiting throughout pregnancy until delivery. These reactions will not affect the health of the fetus in the physiological state (except in the pathological state, such as severe vomiting), but they will make you feel uncomfortable and emotionally abnormal, so we should change our eating and resting habits to help you get through the difficult reaction phase easily; such as eating small and frequent meals, eating small amounts before waking up (such as soda crackers, etc.), drinking small amounts of water before and after meals (such as water, milk, lemon water, ginger tea, etc.), choosing cold, light and non-irritating foods, and avoiding hot and greasy foods. Avoid hot, greasy, fried, sour and spicy food, avoid smelling odors that cause nausea (such as body odor, refrigerator odor, perfume, kitchen cooking odor), avoid overheating, which can cause nausea and vomiting; wear loose clothing to avoid aggravating nausea and vomiting, do things you like to do to distract yourself; lemon and ginger can help reduce nausea and vomiting (drink lemon water, smell lemon and ginger, eat lemon and ginger processed foods), rest properly to avoid straining, keep a happy mood, and take multivitamins (containing vitamin B6). If you have severe pregnancy vomiting, if you lose weight, have severe nausea and vomiting, show signs of dehydration (dark urine, little urine, etc.), have fever, abdominal pain, dizziness and other symptoms, you may have severe pregnancy vomiting and need to seek medical attention in time to avoid affecting you and your fetus. to avoid affecting your health and that of the fetus (miscarriage or maternal ketoacidosis, etc.).