Early pregnancy reactions at 30 days of pregnancy vary from person to person, and each person experiences reactions to a different degree. They usually include the following: 1) nausea, vomiting, loss of appetite, dizziness and drowsiness, etc. These reactions will change with the weeks of pregnancy; 2) increased salivary secretion of pregnant women, and most of the salivary reaction lasts for 3 months and usually disappears after 3 months; 3) due to the combined stimulation of high levels of estrogen and progesterone, persistent swelling and pain in the breast, enlarged nipples, and subcutaneous breast veins may be visible, and breasts may also be swollen and itchy, and the color of nipples and areolas may deepen; 4) vaginal discharge, which is the result of the pregnancy, may also cause a feeling of pain and itching. Obviously, the breasts may also have swelling and itching sensation, and the color of nipple and areola will deepen; 4. Vaginal secretion will increase, and yogurt-like curdled milk leukorrhea may appear in the vagina, but there will be no vulvar itching, peculiar smell and other uncomfortable manifestations. During this period of 30 days of pregnancy, pregnant women should pay attention to rest, drink more warm water, low salt and low sugar, eat small meals, eat light, easy to digest food, eat more fresh vegetables and fruits, you can increase outdoor aerobic activities as appropriate. If there is abdominal pain, vaginal bleeding, at any time to go to the hospital for examination, according to the results of the examination of the symptomatic use of drugs to protect the fetus, relax and avoid exertion.