Symptoms before pregnancy

summary

The first three months of pregnancy are the basic period of a child. A fertilized egg cell is constantly dividing and growing. Although it only grows to the size of mung bean at the end of the first trimester of pregnancy, all the main body structures of the fetus have begun to form. Some main organs of the fetus, such as brain, eyes, spine, liver, arms and legs, have begun to develop. For example, the development of the brain is from the fourth week, after a series of complex changes, the formation of the brain, cerebellum and ventricle. Tell us about the symptoms before pregnancy.

Symptoms before pregnancy

1. In the first month of pregnancy (1-4 weeks), if the menstrual cycle of a pregnant woman is once every 28-30 days, the pregnancy time is calculated from the first day of the first menstruation, and the second week of pregnancy is the time of sperm egg combination and conception. After fertilization, the cells continue to divide and quickly become a solid cell mass, which is called sangkan embryo. Cell division occurs when the fertilized egg floats along the fallopian tube to the uterus. About 4 days after fertilization, the pregnant egg reaches the uterus. At the third week of pregnancy, the outer membrane of the cell mass is removed to prepare for implantation. At this time, there are about 150 cells and they differentiate into two parts: the inner cell group is the later fetus, and the outer cells will form placenta and amniotic sac in the future. When the blastocyst is implanted into the spongy endometrium, which is rich in nutrients and oxygen, and the implantation is completed, a large amount of oxygen, protein, vitamins and other substances in the blood of pregnant women enter the blood stream of the embryo continuously through the thin villous wall. At the fourth week of pregnancy, the blastocyst has been firmly planted in the human uterus, where it grows and develops into a very small embryo. At this time, to the time of menstruation, the initial feeling of pregnant women is breast fullness and tenderness, at the same time, menstruation and future tide, should consider whether pregnant. Gestation 3-4 weeks, known as fetal bud period, fetal bud about 0.5-1 cm long, like a small hippocampus, this period is an important organ growth period.

2. If the second month of pregnancy (5-8 weeks) to the fifth week, menstruation is still the future tide, the basic temperature is high temperature, lasting more than 16 days, can go to the hospital urine test, if the pregnancy test is positive, can be basically determined as pregnancy. At this time, pregnant women begin to have pregnancy reactions, such as loss of appetite, anorexia, nausea, vomiting, drowsiness, fatigue and fear of cold, and even sentimental and irritable mood. Some parts of pregnant women's body also began to change: breast swelling, nipple areola black, urine and urine and leucorrhea increased, these phenomena are physiological phenomena, do not have to feel anxious. In the second month of pregnancy, the embryo has a body and a tail. It can distinguish between the eyes and the small ridges on the hands and feet, which are the future fingers and toes. At the fifth week of gestation, the neural tube gradually formed. These neural tubes will develop into the brain and spine in the future. About 7 weeks of gestation: the fetus is about 2-3cm long and weighs about 4G. It has grown hands and feet, and can be seen from eyes, ears and mouth. Its face looks like a human.

3. In the third month of pregnancy (9-12 weeks), when the pregnancy enters the ninth week, the face of the embryo has obvious features, the body of the embryo is elongated, straightened, and the tail is shortened to disappear. By the tenth week, the embryonic period is over and the fetus is in its infancy. The human features of the fetus are obvious, with fingers and toes visible. The umbilical cord is gradually lengthened, and the fetus can rotate freely in the amniotic fluid. At this time, the fetal heart, liver, stomach, intestines, etc. are more developed, the kidney is also gradually developed, producing urine, and with the ureter, the fetus can carry out micro excretion. By the end of 11 weeks, the womb of pregnant women is as big as a fist. If you press around the womb, you will feel pressure in the lower abdomen or heel cramps, and the frequency of urination will increase. At this time, the pregnancy reaction gradually alleviates and will soon disappear. Pregnant women at this time will feel more swollen breasts, areola, nipples began to have pigmentation, black color. During this period, pregnant women are prone to constipation and diarrhea. This period is the most likely period of abortion, pregnant women should stop intense sports and physical labor, not travel. At the same time, pay attention to avoid abdominal compression and compression. If this period of pregnant women with abdominal pain and a small amount of bleeding, should immediately accept the doctor's examination, because there is the possibility of abortion and ectopic pregnancy, must not relax vigilance.

matters needing attention

1. Pay attention to pregnancy and see a doctor in time. The body signal of pregnancy varies from person to person, the initial reaction is relatively mild, not specific, and is often ignored. Therefore, it is particularly important to pay attention to the menstrual date. After the occurrence of contraceptive measures bad sex, menstruation is not on time, we should be highly alert to the possibility of pregnancy. Determine the pregnancy as soon as possible, and leave yourself as much time as possible to decide how to treat the new life. Because the earlier the termination of pregnancy, the less physical and mental harm to women. And the earlier the pregnancy care starts, the lower the risk of unintentional harm to the fetus. Two lives in the body, who dares to be free. Especially in the first three months, we must take it seriously. Once confirmed pregnancy, we should immediately go to the hospital to establish a perinatal health care card, enter the local perinatal health care network, carry out systematic prenatal examination, and participate in lectures for pregnant women. Mothers and family members should also actively cooperate with doctors to understand the course of pregnancy and related medical history. 2. Quit smoking and drinking. Tobacco contains hundreds of toxic substances, which is the incarnation of the devil for mother and son. Direct or indirect inhalation of smoke by pregnant women can cause abortion, premature delivery, fetal dysplasia and various malformations. Development sensitive embryos are very sensitive to alcohol, and maternal alcohol abuse greatly increases the risk of fetal growth retardation and malformation. 3. Eat and rest properly. The discomfort of early pregnancy reaction, especially vomiting, makes the novice mother worry that the fetus will be malnourished. In fact, there is no need to be overly nervous. This small embryo does not need a lot of nutrition. Insisting on eating and the nutritional reserves in the body can fully meet his / her small requirements. Reasonable adjustment of diet to adapt to the physiological characteristics at this time, such as eating less and more meals, choosing high-quality and easy to digest food and so on. The appearance of small life brings a lot of physiological changes to the mother. Pregnant women often feel tired and need to rest especially. If a short nap can be added every day, it is especially conducive to the recovery of physical strength.