The majority of women who have experience in childbirth are able to determine early whether they are pregnant, while women who are newly married or have never had children generally lack experience in this area. After a woman is pregnant, a series of physiological changes occur in the body, early pregnancy changes are about the following aspects: 1, menopause symptoms Menopause is the earliest and most important “signal” of early pregnancy. All married women of childbearing age who have always had normal menstrual cycles should consider the possibility of pregnancy if the menstrual period is more than 10 days, and if the menopause is more than 2 weeks, you need to go to the hospital to check the cause. 2.Early pregnancy reaction Most women can experience dizziness, weakness, drowsiness, increased salivation, loss of appetite, nausea and vomiting after 6 weeks of pregnancy, and vomiting mostly occurs in the early morning or on an empty stomach. Some pregnant women especially like to eat acidic and cold food. These phenomena are called early pregnancy reactions, which mostly disappear on their own in about 12 weeks after pregnancy. In a few cases, the early pregnancy reaction is more serious and lasts longer. 3.Increased urination After 8 weeks of pregnancy, there may be an increase in the number of urination, which is caused by the pressure and stimulation of the bladder after the uterus increases. After 12 weeks of pregnancy, the uterus exceeds the pelvic cavity, the bladder is no longer compressed and stimulated, and the symptoms of frequent urination will be relieved by itself. 4.Breast changes After pregnancy, under the joint stimulation of estrogen and progesterone, from the 8th week onwards, the breasts will gradually grow, the color of nipples and areolas will deepen, and there will be dark brown nodules around the nipples, etc. After 12 weeks, there will be a little watery milk secretion. 5.Basal body temperature changes Women who measure their basal body temperature can know early pregnancy from this. The normal basal body temperature of women is a two-way curve, i.e. lower before ovulation and higher after ovulation. If the menstruation is due to come, the body temperature rises and does not fall anymore and stays for more than 18 days, it means pregnancy.