Standard value of gestational sac size at 6 weeks of pregnancy

Friends may all know that in the early stages of pregnancy, an ultrasound examination is needed to see whether the baby is developing healthily. As the pregnancy progresses, the baby will continue to change little by little. The baby has different developmental conditions and standard developmental values ​​at different developmental stages. So what is the standard value for the size of the gestational sac at six weeks of pregnancy? Next, I will give you a detailed introduction. I hope expectant mothers can check out the article.

Standard value of gestational sac size at 6 weeks of pregnancy

4 weeks: The fetus is only 0.2 cm. The amniotic cavity is formed just after the fertilized egg has implanted and its volume is very small. Ultrasound cannot show clear signs of pregnancy.

5 weeks: The fetus grows to 0.4 cm and enters the embryonic period. The amniotic cavity expands and primitive cardiovascular system appears, which may beat. B-ultrasound can show a small gestational sac, which occupies less than 1/4 of the uterine cavity, or a fetal bud can be seen.

6 weeks: The fetus grows to 0.85 cm, and the head, brain alveoli, facial organs, respiratory, digestive, and nervous organs are differentiated. The fetal sac is clearly visible on B-ultrasound, and the fetal bud and fetal heartbeat are seen.

7 weeks: The fetus grows to 1.33 cm. The embryo has the rudiments of a human being. The body segments are fully differentiated, the limbs are separated, and various systems are further developed. B-ultrasound clearly shows the embryo and fetal heartbeat, and the gestational sac occupies about 1/3 of the uterine cavity.

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

9 weeks: The fetus grows to 2.15 cm, the head is larger than the body, the various parts are clearer, the skull begins to calcify, and the placenta begins to develop. B-ultrasound shows that the gestational sac almost fills the uterine cavity, the fetal outline is clearer, and the placenta begins to appear.

10 weeks: The fetus grows to 2.83 cm, all fetal organs have been formed, and the rudiments of the placenta are formed. Ultrasound showed that the gestational sac began to disappear, the crescent-shaped placenta was visible, and the fetus was active in the amniotic fluid.

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11 weeks: The fetus grows to 3.62 cm, the fetal organs develop further, and the placenta develops. B-ultrasound showed that the gestational sac had completely disappeared and the placenta was clearly visible.

6 Weeks Pregnancy Symptoms

Fetal development

The embryo is about 0.6 cm long, like a small blueberry. The heart begins to beat. The embryo floats in the fluid-filled amniotic sac, and its "body" curls up like a C shape.

Mom changes

Pregnancy reactions begin to become obvious, with chest pain, enlarged and softened breasts, and you will often feel tired, sleepy and have frequent urination. Changes in the mother’s oral cavity during pregnancy will also affect the healthy growth of the baby!

After a brief introduction by the editor, I believe that all expectant mothers have already understood the standard value of the gestational sac size at 6 weeks of pregnancy and the symptoms at 6 weeks of pregnancy. If you are a pregnant woman at 6 weeks of pregnancy, you should know that at this time the fetus grows to 0.85 cm, the fetal head, brain alveoli, frontal organs, respiratory, digestive, nervous and other organs are differentiated, and the gestational sac is clearly visible on B-ultrasound.