Picture of two gestational sacs of twins at 8 weeks

I believe that many parents are hopeful about the gender of their children. With the development of technology, it is now possible to know the gender of a child through many methods such as B-ultrasound. However, some pregnant women are found to have two gestational sacs. Many people are not sure what it means. Do two gestational sacs mean they are twin babies? So is the probability of two gestational sacs being twins high?

What is the probability of twins with 2 gestational sacs?

If it is twin babies, there must be two gestational sacs and two fetal heartbeats. Two gestational sacs indicate that the baby is definitely twins, but it does not mean that they are twins. This can only be confirmed after the baby is born.

The gestational sac is the initial embryonic tissue, a small test tube embryo encapsulated by the amniotic membrane and vascular network. The gestational sac is the initial shape of pregnancy. The baby has not yet been born at that time. When the embryonic bud and fetal heartbeat appear, the fetal heartbeat has already begun. It is not a correct question to ask how many gestational sacs twins have, because there are many types of twins, including monozygotic twins and dizygotic twins.

How to determine the gender of twin babies

If the twin babies are of different genders, they are definitely fraternal twins. If the sexes are the same, further distinction is necessary. When the babies are born, the doctor may tell you that the two children are from one embryo or two embryos. The number of gestational sacs for twin babies also depends on the gender of the fetuses.

One embryo indicates identical twins, and two embryos indicate fraternal twins. But this kind of definition is incorrect. Although the condition of the embryo and placenta has a certain correlation with the gender of the twins, it is not certain, so it cannot be judged based on this alone.

One thing that is clear from the two gestational sacs is that they are definitely twin babies, but they may be two boys. It may be two girls. There are also different types of twins, monozygotic twins and dizygotic twins, so two gestational sacs are not necessarily twins. Their probabilities are the same and are all determined by the father.