Nine weeks of pregnancy can be used to determine the status of the fetus by checking progesterone, HCG, ultrasound, or by the pregnant woman through her own state. If the value of progesterone and HCG doubles well and is within the normal range during the pregnancy test, it suggests that the fetus is developing well, and ultrasound can show the size of the gestational sac, fetal heartbeat, blood flow signals, and the position of the placenta attachment to clarify the development of the fetus. During this period, if the pregnant woman does not have symptoms such as lower abdominal distension, lumbar pain and bloating, vaginal bleeding, etc., it usually indicates that the fetus is developing well. During pregnancy, pregnant women should pay attention to prenatal checkups and actively listen to the advice of professional doctors to do comprehensive care and health care work, which can effectively ensure the safety of delivery. At the same time, they should relax and avoid nervousness and anxiety. If the results of the above tests are obviously abnormal during the pregnancy test, or if the above symptoms occur, it is recommended to consult a doctor in a timely manner, under the guidance of the doctor, to improve the relevant examinations, to clarify the cause of the disease, and symptomatic treatment.