Picture of the size of the gestational sac at 8 weeks of pregnancy

At 8 weeks of pregnancy, this period is still in the early stages of pregnancy and everything about the fetus is not stable. The gestational sac is closely related to the development of the baby. So, what is the normal size of the gestational sac at 8 weeks of pregnancy? Next, I will explain these aspects in detail for everyone, and I hope it will be of some help to everyone. Please listen to my detailed introduction.

1. 4 weeks: The fetus is only 0.2 cm. The amniotic cavity is formed just after the sperm and egg combine and the embryo implants, and its volume is not large. Ultrasound cannot clearly show signs of pregnancy.

2.5 weeks: The fetus grows to 0.4 cm and enters the test tube embryo stage. The amniotic cavity expands, initial cardiovascular and cerebrovascular diseases appear, and heart beats may be present. B-ultrasound can show a small gestational sac, which occupies less than 1/4 of the uterine cavity, or the embryonic bud and fetal heartbeat can be seen from it.

3.6 weeks: The baby grows to 0.85 cm, the baby's head, brain bubble, frontal organs, respiratory, digestive, absorption, nerve and other organs are divided, the gestational sac is clearly visible on B-ultrasound, and the fetal bud, fetal heart and

Fetal heart rate.

4.7 weeks: The fetus grows to 1.33 cm. The test tube embryo has a human prototype, the body segments have all divided, the limbs have separated, and the various systems are further developing. B-ultrasound clearly shows the embryo, fetal heart rate and fetal heart rate. The gestational sac occupies about 1/3 of the uterine cavity.

5.8 weeks: The fetus grows to 1.66 cm, the fetal shape is fixed, the fetal head, body and limbs can be separated, and the fetal head is larger than the body. B-ultrasound shows that the gestational sac occupies about 1/2 of the vagina, the shape of the fetus and the fetal movement are clearly visible, and the yolk sac can be seen.

6.9 weeks: The fetus grows to 2.15 cm, the fetal head is larger than the embryo, the main manifestations of various parts are clearer, the head begins to thicken, and the embryo begins to grow. B-ultrasound shows that the gestational sac is almost filling the uterine cavity, the outline of the fetus is clearer, and the embryo has just begun to appear.

7. 10 weeks: The fetus grows to 2.83 cm, the fetus's internal organs have been formed, and the embryonic prototype is formed. B-ultrasound showed that the gestational sac had begun to shrink, and the crescent-shaped embryo was visible, and the fetus was active in the amniotic fluid of the pregnant woman.

8. 11 weeks: The fetus grows to 3.62 cm, the fetus's internal organs continue to grow and develop, and the embryo grows and develops. B-ultrasound showed that the gestational sac had completely disappeared and the embryo was clearly visible.

9.12 weeks: The fetus grows to 4.58 cm, the reproductive organs are basically developed, any deformities may be manifested, and the head thickens and becomes more complete. The skull halo is clear, the biparietal diameter of the fetus can be measured, obvious deformities can be diagnosed, and the internal organs tend to be healthy.

The above is what I have introduced in detail about the normal size of the gestational sac at 8 weeks of pregnancy. I hope it will be helpful to you. I believe that after listening to the editor's introduction, everyone will have a new understanding of these aspects. There is a saying that the gender of the baby can be determined based on the fetal sac. This saying lacks certain rationality, so just listen to it.