If you have a 2cm gestational sac and have not seen the fetal heart and buds, some women may be normal, and some women have experienced embryonic arrest. 1. may be normal: some women’s gestational sac development to 2cm has not seen the fetal buds and fetal heart, because the pregnancy time is still relatively short, belongs to the individual differences, simply just a slightly larger gestational sac, the need for a week after the review, some can see the fetal buds and the fetal heart tube pulsation, you can have a normal pregnancy. 2. Embryonic arrest: the gestational sac is 2cm, if there is no big difference between the results of the examination and a week ago, or before the examination of the buds and fetal heart, and now review the buds and fetal heart disappeared, or check to the blood human chorionic gonadotropin HCG and progesterone levels are very low, generally can be judged to be the cessation of development of the embryo, the need to comply with the doctor’s advice to carry out the appropriate disposal. In the case of a 2cm gestational sac with no buds or heartbeat, it is necessary to combine the previous or subsequent tests and then follow the doctor’s instructions for the appropriate treatment.