Ultrasound picture of gestational sac at 30 days of pregnancy

Creating a baby is a complex process. After the egg is fertilized, it enters the uterine cavity, and the IVF embryo and its appendages develop rapidly until they are fully grown. Therefore, there are different changes in each pregnancy week. The gestational sac is only seen in early pregnancy and cannot be seen in the first half of pregnancy. You can't see anything on B-ultrasound at 30 days of pregnancy, but the gestational sac can usually be seen under the sky at 42 days of pregnancy.

The gestational sac varies from person to person. The "person" here does not refer to the "long skirt" or "little jeans" of different genders, but only to the pregnant woman herself. In other words, the pregnant woman's own condition will affect the development of the fetus.

If expectant mothers want to know whether the gestational sac is normal, they can go to a reliable hospital for examination. The gestational sac can be accurately measured by B-ultrasound to estimate the gestational age. According to the changes in the gestational sac data, the development of the baby can be discovered immediately. The size of the gestational sac changes as the fetus grows.

The gestational sac is the initial appearance of pregnancy. At that time, the fetus has not yet been formed. When the embryonic bud and fetal heartbeat appear, the fetal heartbeat has already been shaking. The IVF embryo is placed in the endometrium in the second week. When it develops to the second germ layer, a large cavity called the primary yolk sac appears in the internal oblique muscle of the embryonic disc. The yolk sac continues to shrink and decline during the embryonic development process, but the extraembryonic mesoderm in the yolk sac cavity is the original birthplace of blood cells, blood vessels and primitive germ cells - the gestational sac, where the fetus will grow in the future. The gestational sac is not difficult to see in the early stage, but it cannot be seen in the first half of the pregnancy. Because as the pregnancy progresses, the gestational sac gradually expands and divides until the pregnant woman gives birth. Generally, at 80 days of pregnancy, the gestational sac is 6.0*3.2, the fetus grows to 3.62 cm, the five internal organs of the fetus are further developed, the test tube embryo is developed, the male reproductive organs are basically developed, the head becomes thicker and gradually complete, the skull height score is clear, and the biparietal diameter of the fetus can be measured. Obvious deformities can be diagnosed, and then each person's internal organs tend to be perfected. During this period, many details of the fetus's body begin to appear, such as fingernails, velvety hair, etc. The baby has begun to suck, swallow and bend in your uterine cavity, and fingernails and hair have also appeared. This is the most complete stage of the baby's bone formation and development.

Parents can use this kind of data to identify the development status of their babies.