The early stages of pregnancy are euthymic and at the same time at this stage the peak of miscarriages occurring. The morphology of the gestational sac in a normal pregnancy is relatively regular and the tension is good. If the gestational sac is not regular, the probability of miscarriage is increased, as is the probability of miscarriage with preeclampsia, difficult miscarriage, and embryonic arrest. Whether or not you can have it depends mainly on the effect of fetal preservation, if the tension of the gestational sac returns to normal after active fetal preservation, and all the indicators of the examination are also within the normal range, you can still continue to observe. If the shape of the gestational sac is irregular and accompanied by bleeding and abdominal pain, in this case, we usually consider termination of pregnancy.