What is the gestational sac?

What does the gestational sac film look like when you are two months pregnant with a boy? It is said that the gender of the fetus can be determined by looking at the shape of the gestational sac in the B-ultrasound report. Well, let's take a look at the gestational sac film of a boy in the second month of pregnancy and the shape of the gestational sac film of a boy in the second month of pregnancy.

The gestational sac of a boy in the second month of pregnancy will appear longer and thinner like a green bean compared to the oval shape of a girl.

At 7 weeks of pregnancy, the embryo is about 2.5 cm long and weighs about 4 grams. The heart, stomach, intestines, liver and other internal organs and the head have begun to divide. The hands, feet, eyes, mouth, ears and other organs have been formed. It can be said that it has become a shape that is closer to that of a human, but it is still relatively small.

The chorion is more developed, the embryo is formed, the fetal umbilical cord appears, and the connection between the pregnant mother and the fetus is very close.

What is the gestational sac?

The gestational sac is actually the initial embryonic tissue, which is a small test tube embryo encapsulated by the amniotic membrane and vascular network. The gestational sac is the initial shape of pregnancy, when the baby has not yet been born. When the fetal bud and fetal heartbeat appear, the fetal heartbeat has already occurred. The test tube embryo is embedded in the uterine wall in the second week. When it grows 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 deteriorate during the embryonic development process, but the extraembryonic mesoderm on the inner wall of the yolk sac is the original origin of the production of red blood cells, blood vessels and primitive cells - the fetal sac, where the future fetus will grow.

The gestational sac is only seen in early pregnancy. For women with standard menstrual periods of 28 to 30 days, the gestational sac can be seen in the uterine cavity by B-ultrasound 35 days after amenorrhea. The diameter of the gestational sac is 2 cm at 6 weeks of pregnancy and about 5 cm at 10 weeks of pregnancy. It is normal for the gestational sac to be located between the anterior and posterior inner walls of the fundus of the uterus; it is normal if it is clearly oval in shape; if the gestational sac is irregular and unclear, and is located at the bottom, and the pregnant woman also has abdominal pain or vaginal bleeding, she may have a miscarriage.

Two-month gestational sac film of a boy: How to judge whether the baby is a boy or a girl

Nowadays, people mainly judge based on the size and shape of the gestational sac.

1. Determine the sex of the fetus by looking at the gestational sac

It is said that if the length of the gestational sac is more than twice its width, it is likely to be a boy. If the length and width are the same, or the difference between them is not that big, it is likely to be a girl. Some mothers looked back at the B-ultrasound data when they were pregnant to verify it. For example, when a mother was 8 weeks pregnant, the gestational sac was 16mm and the peritoneum was 17mm, and she gave birth to a princess.

2. The shape of the gestational sac determines the sex of the fetus

Many people believe that the shape of the gestational sac can tell whether the baby is a boy or a girl. Generally speaking, if the gestational sac looks like a green bean or is long and narrow, it is more likely to be a boy; if the gestational sac is oval or ring-shaped, it is likely to be a girl.