What should I do if I have no gestational sac for 47 days? Some of this situation is caused by the late implantation of fertilized eggs, so don't worry. It is recommended to go to the hospital for a super-review in about 60 days to see how the gestational sac develops. Pregnancy is a complicated process. After fertilization, the egg enters the uterine cavity, and the embryo and its appendages grow rapidly until they mature, which will change differently every pregnancy week.
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.
9 weeks: The fetus grows to 2. 15 cm, the fetal head is larger than the carcass, and the performance of each part is clearer. The skull begins to calcify and the placenta begins to develop. B-ultrasound showed that the fetal sac almost filled the uterine cavity, the fetal contour was clearer and the placenta began to appear.
10 week: the fetus grows to 2.83 cm, all the organs of the fetus have been formed, and the placenta of the embryo has been formed. B-ultrasound showed that the fetal sac began to disappear, the crescent placenta was visible, and the fetus was moving in amniotic fluid.
1 1 week: The fetus grows to 3.62 cm, the fetal organs develop further, and the placenta develops. B-ultrasound showed that the fetal sac disappeared completely and the placenta was clearly visible.
Symptoms of empty gestational sac 1. There are three phenomena of empty gestational sac: only empty gestational sac, yolk sac and a little germ.
Second, after 60 days of pregnancy, if you don't see the fetal heart of the embryo, you can basically count it as an empty bag. Even if you are waiting for a good pregnancy, there is little hope.
Third, it is very easy to conceive, and the hit rate in January is extremely high. (Of course, it is not excluded that some sisters are not easy to conceive. )
Fourth, the empty gestational sac is growing constantly during pregnancy, so some sisters have a strong reaction during pregnancy, and some sisters have no pregnancy reaction.
Note: A reaction cannot prove that it is not an empty sac.
5. During pregnancy, all kinds of hcg, progesterone and chorionic gonadotropin are normal, and hcg is doubled, but it is still empty.
Note: A good value does not mean that it is not empty.
6. Some empty girls do not bleed during pregnancy, and some bleed. The color is dark brown and bright red, which doesn't prove that you are not empty.
Seven, if the value is not good, it is better to prove that the embryo itself is not good, even if it is useless to protect the fetus, it can only make the gestational sac bigger and bigger.
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