The likelihood of success in keeping the fetus alive without doubling the HCG value is relatively low, but there is still a chance of success if the fetal heart, buds and embryo development are good.
Under normal circumstances, good embryonic development is often characterized by a doubling of blood HCG (human chorionic gonadotropin) every other day and a gradual increase in progesterone. If the HCG has not doubled but is still rising, the progesterone value is good, and the fetal heart and buds have appeared and are good, the embryo is developing well, then it is possible to be successful in keeping the baby alive, and you can make an attempt to keep the baby alive.
If HCG does not double in early pregnancy or even decreases, accompanied by low progesterone, bleeding, abdominal pain and other manifestations of the pregnant woman, usually suggests that the chances of successful abortion are relatively low.
If HCG rises slowly and fails to double, and no obvious fetal heart or buds can be seen on ultrasound, and the embryo is still in poor condition after one week of attempted fertility preservation treatment, then the chances of success of fertility preservation are also relatively low.
Therefore, it is recommended that pregnant women actively consult a medical professional and standardize the diagnosis and treatment.