In general, the progesterone value of pregnant women on the 35th day of pregnancy is 15-30ng/ml, preferably above 25ng/ml and not more than 30ng/ml. HCG, human chorionic gonadotropin, is generally in the range of 3000-7000 IU/L on the 35th day of pregnancy, but it should be noted that the values of progesterone and human chorionic gonadotropin on the 35th day of pregnancy vary from person to person. If the progesterone and HCG values are too high or too low, there may be the following conditions: 1. Low progesterone and HCG values 1. Ectopic pregnancy: Ectopic pregnancy is an important cause of low progesterone and HCG values at the same time. Ectopic pregnancy can cause abnormal doubling of HCG and low progesterone levels, and gynecological ultrasound should be performed in time to clarify whether ectopic pregnancy has occurred. Ectopic pregnancy may lead to hemorrhage and even cause life-threatening conditions, and should be treated with drugs or surgery in a timely manner. 2. abnormal embryonic development: abnormal embryonic development will cause low progesterone and HCG values, and the results of ultrasound, blood HCG and progesterone tests should be observed regularly to determine the development of the fetus, and timely treatment should be provided in case of pre-eclampsia and other conditions. The high value of progesterone and HCG may be caused by abnormal pregnancy such as gravida, it is recommended to perform gynecological ultrasound examination in a timely manner.