Are twins fetuses or girls?

Female and male reproductive systems are different. Women can only produce one mature egg cell a month, while men can produce a lot of sperm every day. So the probability of having twins is extremely small. So twins are either fetuses or girls?

Are twins not fetuses or girls? 1. The size of the gestational sac depends on men and women: It is said that if the difference between the length and width of the gestational sac size is more than twice, it is more likely that a boy will be born. If the length and width are equal, or the difference is not big, it is likely to be a female baby.

Truth: Actually, the size of gestational sac varies from person to person. The "person" here does not refer to the fetus of different sexes, but refers to the fetal development influenced by the pregnant woman herself or the pregnant mother's personal special circumstances. The size of gestational sac measured by B-ultrasound is mainly used to estimate the gestational age, and the defects in fetal development can be found in time according to the change of data. Can't be used to judge men and women.

2. Men and women look at the shape of the gestational sac: It is said that the shape of the gestational sac can tell whether the fetus is male or female. Generally speaking, if the gestational sac is shaped like eggplant, or it is very long, it is more likely to be pregnant with a male baby; And if the gestational sac is oval or round, it is likely to be a female baby.

Twins, like singletons, have two ways to identify the sex of the fetus. The simplest and most common method is to observe whether the fetus has scrotum and penis by B-ultrasound after 4~5 months of pregnancy. This method is sometimes a little more difficult for twins. Then take amniotic fluid for DNA testing. The latter is more complicated, and hospitals with general conditions cannot adopt this method. Either way, it can only be used when pregnant women or fetal fathers have special genetic diseases, otherwise it is illegal.

Is the fetal movement on the left a boy or a girl? Many pregnant women feel that the baby's fetal movement is often on the left. Why? In fact, the position of fetal movement has a great relationship with the position of the fetus in the uterus. The fetus is generally in a state of flexion and embrace in the uterus, and the back can be located anywhere in the uterine cavity. Because the fetus is usually in the head position or breech position, in most cases, the back of the fetus is located on the left or right side of the uterus, and most of the limbs are on the opposite side of the back. That is to say, if the back is on the left, the fetal movement is mostly on the right; if the back is on the right, the fetal movement is mostly on the left.

Whether the fetal movement is on the left or the right, the baby's health can be monitored. Therefore, expectant mothers should still check the fetal movement every day to ensure the baby's health.