If the gestational sac has no fetal heartbeat or buds and continues to grow, it may be due to early examination, fetal heartbeat or buds have not yet formed or artificial birth control can lead to the growth of empty sacs, which need to be analyzed specifically. 1. Examination is too early, the fetal heart buds have not yet formed: under normal circumstances, the fetal heart buds will not appear until the 6th to 8th week of pregnancy. If you check before that, you will only see the gestational sac growing, but not the fetal heart buds, which is a normal phenomenon. 2. Artificial abortion preservation: If there have been multiple spontaneous abortions, and the patient chooses to advance the abortion preservation treatment in this pregnancy, the gestational sac will also be seen to be growing without the fetal heartbeat and fetal buds. It is recommended that the couple carry out all the preparatory examinations before pregnancy, and then prepare for pregnancy if there is no problem. If there is no fetal heartbeat in the gestational sac after pregnancy, the cause should be clarified, and if the embryo stops developing, the pregnancy should be terminated in time.