At 12 weeks of pregnancy, the uterus has been enlarged one after another at this time, so the pressure on the bladder will become more and more powerful, and there are some pregnant women who will have symptoms of frequent urination and urgent urination. After 12 weeks of pregnancy, the hormone levels in the body have stabilized. Many people used to have gastrointestinal discomfort under the stimulation of hormone levels, such as nausea, vomiting, dry heaving, a series of gastrointestinal symptoms, after 12 weeks, will gradually reduce or slowly disappear, and there are also people who have such symptoms will suddenly disappear, and yesterday was vomiting to the sky, but today I feel that there is not even a little reaction. Breasts used to be stimulated by estrogen and progesterone, and there was a feeling of swelling in both breasts, and there was hyperplasia in the mammary glands. Symptoms such as this kind of breast hyperplasia will be slightly reduced, slowly relieved, and will not hurt so much, but the color of the nipple and the areola will be getting darker and darker.