Both HCG and progesterone indicators are used to measure the development of embryo in early pregnancy. The symptoms of low HCG and high progesterone are caused by poor embryo development. The HCG value of pregnant women will change drastically every 48 hours and the value is doubled. When the Hcg value is low, it means that the doubling of HCG is not obvious, and the fetus can be treated with birth control medication through examination and under the advice of the doctor. It is possible to take oral or fetus preservation injections to protect the fetus. There is no need to worry too much, as long as the HCG doubling is normal and the progesterone is high in the later tests, it means the fetus is developing normally. Most pregnant women have fetal heartbeat and fetal buds already present at about two months of pregnancy. If the HCG value is still very low or even has a tendency to decline, despite the high progesterone value, it means that the fetus is seriously underdeveloped, or even the fetus has signs of stopping development, and it is recommended to terminate the pregnancy.