HCG values show a downward trend, progesterone rises, there may be abnormal embryonic development or fetal arrest, if it is about 10 weeks of pregnancy blood HCG decline, may be a normal phenomenon.
After pregnancy, if the embryo develops normally in the body, HCG value has a tendency to double and grow, can double and grow to more than 10,000, and reach the peak in 8-10 weeks of pregnancy, and then fall to a certain level, while the value of progesterone does not have this doubling characteristic, progesterone can fluctuate in a high level at an early stage.
HCG value level is a major indicator of intrauterine development of the embryo, if HCG did not double or show a downward trend in early pregnancy suggests that the embryo development is abnormal or embryonic development has stopped, regardless of whether the progesterone is rising or falling, it is a sign of adverse pregnancy, if there is a decline in HCG around 10 weeks of pregnancy may be a normal physiological decline.
In this case, it is necessary to consult a doctor in time to check, review the obstetric ultrasound, specific interventions need to be carried out under the guidance of a physician, and if necessary, terminate the pregnancy.