If a woman is pregnant and the ultrasound reveals a large gestational sac in the uterine cavity, but there is no fetal heartbeat or germ, it is often considered a sign of an empty gestational sac. If it is found for the first time, then you may consider to repeat the ultrasound after one week to see the appearance of the fetal heartbeat and fetal buds. You can consider abortion, or you can take mifepristone and misoprostol to remove the pregnancy sac before performing the operation to remove the uterus. This is because there is no medication to treat an empty sac, which is why you have to give up, and it is recommended that you have a routine preconception test before your next pregnancy to avoid another empty sac.