Will the gestational sac grow into the uterine cavity in the left corner of the fundus? Although pregnancy is a good thing for everyone, all kinds of trivial things after pregnancy are inevitably more worrying. If everything is normal, that is the most relaxed and reassuring. However, if there is a little problem in the prenatal examination, it will make the family worry a lot. For example, is the gestational sac just at the bottom of the uterus normal?
If gestational sac's position is in the fundus, it means that gestational sac's position is low, which is also a reason for the low placenta in the future. There are no symptoms in the early stage of low gestational sac, but with the progress of pregnancy, the uterus will gradually increase. If the gestational sac at the bottom of the uterus cannot be stretched, it is easy to dislocate and fall off. At this time, the vagina will bleed. If there is massive bleeding, the lives of pregnant women and babies will be threatened. Generally, at this time, you should be hospitalized immediately to prevent miscarriage, and use drugs to prevent miscarriage according to the doctor's advice.
If the gestational sac is too low, it is easy to miscarry, so pregnant women should stay in bed more and exercise less to prevent miscarriage caused by fetal instability. Once gestational sac is found to be on the low side, you should take a pillow or pillow to raise your ass when sleeping, so as to improve the current situation of low gestational sac. If you lie flat, you can also choose to lie on the left or the right to adjust the position of the gestational sac.
Even if the implantation position of the gestational sac is not very good, pregnant mothers should not give themselves too much psychological pressure. It is very important to keep a good mood and pay attention to their diet, so as to have a positive impact on the development of gestational sac.
The concept of son preference can almost be regarded as a criticism of China's traditional society. Although the society has developed, many people's ideas have changed, and they are no longer entangled in the problem of having boys and girls. However, in the eyes of backward rural areas and the older generation, they still hope to have boys, especially now that there are more and more only children. So can we judge the sex of the fetus by the size of the gestational sac?
Eggs and sperm are fertilized in the fallopian tube and begin to grow after fertilization. Different DNA will definitely have different shapes. In the early stage of fertilized egg development, the shape of the egg is basically maintained as a circle. After implantation, a fertilized egg is called an embryo. Before the embryo develops the initial brain and spinal cord, that is, until it grows to 13 mm, it basically remains round.
What is the size of the gestational sac? The birth of life is always beautiful. Gestational sac is the initial form of pregnancy, where new life will sprout and grow. But do mothers know what the size of the gestational sac means? Mom, the encyclopedia tells you.
The position of gestational sac is normal in the bottom, front wall, back wall, upper part and middle part of uterus. Normal shape is round, oval and clear; At that time, the fetus was not yet formed, but the fetal heart was beating when the embryo bud appeared. When the embryo is implanted into the endometrium in the second week and develops into the second germ layer, a large cavity called the primary yolk sac appears on the ventral side of the blastoderm. The yolk sac is shrinking and degenerating during embryonic development, but the ectodermal layer on the yolk sac wall is the earliest cradle of blood cells, blood vessels and primordial germ cells-gestational sac, where the fetus will develop and grow.
The size of the gestational sac is a sign of the size of the pregnant month. The bigger the gestational sac, the bigger the month.
Pregnancy is a complicated process. After fertilization, the egg enters the uterine cavity, and the embryo and its appendages grow and develop rapidly until they mature. There will be different changes every gestational week. The first three weeks are not obvious, so I can tell you the gestational sac size of each cycle and feel the growth process of the fetus.
4 weeks: the fetus is only 0.2 cm. As soon as the fertilized egg is implanted, the amniotic cavity is formed, and the volume is very small. Ultrasound shows no signs of pregnancy.
5 weeks: The fetus grows to 0.4 cm, enters the embryonic stage, the amniotic cavity expands, the primitive cardiovascular system appears, and there may be pulsation. B-ultrasound showed a small fetal sac, accounting for less than 1/4 of the uterine cavity, or a germ could be seen.
6 weeks: the fetus grows to 0.85 cm, and the fetal head, brain vesicles, frontal organs, respiratory organs, digestive organs, nerves and other organs differentiate. B-ultrasound can clearly see the fetal sac, and can see the embryo and fetal heartbeat.
Week 7: The fetus grows to 1.33 cm, and the embryo has the shape of human embryo, with differentiation of each segment, separation of limbs and further development of each system. B-ultrasound clearly showed the embryo bud and the fetal heartbeat, and the fetal sac occupied about 1/3 of the uterine cavity.
8 weeks: the fetus grows to 1.66 cm, and the fetal shape has been determined, which can be divided into fetal head, fetal body and fetal limb, and the fetal head is larger than the trunk. B-ultrasound showed that the fetal sac occupied about 1/2 of the official cavity, the fetal shape and fetal movement were clearly visible, and the yolk sac was visible.