How big is the gestational sac at 47 days of pregnancy?

After pregnancy, the fetus is not formed immediately. The gestational sac appears first, and then continues to develop and grow, and then gradually develops into the fetus. The focus in the early stages becomes the condition of the gestational sac. The size of the gestational sac is different at different times, and many people are very concerned about the development of the gestational sac. So, how big should the gestational sac be at 47 days of pregnancy? Let’s take a look below.

How big should the gestational sac be at 47 days of pregnancy?

1. If the menstrual cycle was normal in the past, the average diameter of the gestational sac after 47 days of amenorrhea should be about 1.7 cm. In the early stages of pregnancy, keep a happy mood, lead a regular life, increase nutrition, and supplement folic acid.

2. At 47 days of pregnancy, the length of the embryo should be 5 mm. During pregnancy, you should pay attention to nutrition, rest, keep a good mood, ensure adequate sleep, and have a regular life to facilitate fetal development. You should take folic acid and avoid having sex during early pregnancy.

3. Generally speaking, at 6 to 7 weeks of pregnancy, B-ultrasound examination will show the appearance of the gestational sac, and at 7 to 8 weeks of pregnancy, embryonic teeth and heart tube beating will be seen.

Gestational sac and fetus size comparison table

1. 5 weeks: The fetus grows to 0.6 cm and enters the embryonic period. The amniotic cavity expands, and primitive cardiovascular system appears and 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.

2. 6 weeks: The fetus grows to 0.85 cm, and the head, brain alveoli, facial organs, respiratory, digestive, and nervous organs are differentiated. The gestational sac is clearly visible on B-ultrasound, and the fetal bud and fetal heartbeat are seen.

3.7 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.

4.8 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.

5.9 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.

6. 10 weeks: The fetus grows to 2.83 cm, all fetal organs have been formed, and the rudiments of the placenta are formed. B-ultrasound shows that the gestational sac begins to disappear, a crescent-shaped placenta is visible, and the fetus is active in the amniotic fluid.

7. 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.

8. 12 weeks: The fetus grows to 4.58 cm, the external genitalia begin to develop, any deformities will be revealed, and the calcification of the skull becomes more complete. The skull halo is clear, the biparietal diameter can be measured, obvious deformities can be diagnosed, and the internal organs tend to become more complete afterwards.