Generally, the gender of the fetus can be determined by B-ultrasound when the fetus reaches a certain stage of growth and development. It can also be determined by the biparietal diameter standard and the size of the gestational sac. Three and a half months belong to the early stage of pregnancy. Can we see the gender of the fetus at this time? How can we determine the gender of the fetus around three and a half months pregnant?

The most common method to determine the gender of the fetus at present is color Doppler ultrasound examination, which is recognized by most people due to its minimally invasive and accurate nature. However, its accuracy is closely related to the equipment and the operator’s technical level. Color Doppler ultrasound examines the reproductive organs of the fetus to determine the gender of the fetus. It can be identified as early as around 14 weeks of pregnancy, but the Chinese law strictly prohibits the identification of fetal gender for non-medical purposes.

1. Determine gender by B-ultrasound at the early stage of pregnancy

(1) Look at the B-ultrasound data information: if the width of the gestational sac is more than twice the length, it is more likely to be a boy. If the length and width of the gestational sac are the same, it is more likely to be a girl.

(2) Look at the shape of the gestational sac: those shaped like green beans or strips are more likely to be boys, and those that are round are more likely to be girls.

Folklore is widely spread, and by looking at the B-ultrasound report at 40-50 days of pregnancy, the size and shape of the gestational sac can determine the gender of the fetus. The gestational sac shaped like an ellipse or a ring is a girl, and the long strip shape is a boy.

2. Determine gender by B-ultrasound at the end of pregnancy

The folk name: the biparietal diameter of the fetus refers to the transverse diameter of the baby’s head, and the length of the fetal femur is the length of the thigh bone of the fetus. The old generation’s name is that the one with a short head and thigh root is a boy, that is, the biparietal diameter minus the femur length is greater than 2, and the one with a small distance between the head and the leg is a girl.

This is the detailed introduction of the relevant content about how to determine the gender of a fetus around three and a half months pregnant on Baidu Encyclopedia of Mami. In short, it is generally possible to determine the gender of the fetus around three and a half months pregnant, but due to the strict ban on fetal sex determination in our country, it is recommended that expectant parents be patient and wait for the day when their child is born.