Many women hope to have twins so that they can give birth to two babies in one pregnancy. This is a beautiful wish, but many women get pregnant with one gestational sac, and only a small number of women carry two or more gestational sacs. So what does one gestational sac mean?
One gestational sac refers to a singleton pregnancy with only one embryo. The occurrence of two or more conditions is called multiple pregnancies. In the early stages of pregnancy, a gestational sac may appear, indicating successful conception. Afterwards, the gestational sac will gradually develop into an embryo, and as the gestational age increases, it will gradually grow into a humanoid form. The development of embryos varies at each stage, so it is important to undergo regular prenatal check ups to ensure that the embryos are growing normally.
At the beginning, the gestational sac is relatively small and usually not visible. You can see it on the ultrasound at 6-8 weeks, and it will not exceed 8 weeks at the latest. If a gestational sac has not yet appeared, it is necessary to combine blood HCG to determine whether an ectopic pregnancy has occurred. If it is an ectopic pregnancy, it should be treated in a timely manner, otherwise it will affect physical health and may lead to heavy bleeding, fallopian tube rupture, and other situations.
After the gestational sac grows to a certain extent, fetal heart and embryo will appear. When the gestational sac grows to more than 3 centimeters but has not yet reached the fetal heart sun, it is necessary to go to the hospital for a detailed examination, which may be caused by poor development of the gestational sac. Poor development of the gestational sac can lead to natural miscarriage or fetal arrest, so early pregnancy must be taken seriously.
