Progesterone at 6 weeks of pregnancy is only 11ng/mL, which is relatively low. Generally, when progesterone value is above 25ng/mL, it is generally considered that embryonic development is in a relatively good state. However, progesterone is secreted in the early stage of pregnancy in a pulsatile manner, sometimes high and sometimes low, and it does not fully represent the embryonic development. Progesterone has some clinical significance only when it is low in the early stage of pregnancy, and we should not only observe the progesterone value in the 6th week of pregnancy, but also combine it with other tests and clinical symptoms, such as HCG value and ultrasound, to determine whether the gestational sac is alive in the uterine cavity. If the progesterone is 11ng/mL at 6 weeks of pregnancy, but there is a surviving gestational sac in the uterine cavity by ultrasound and the HCG value is increasing satisfactorily, as long as there is no vaginal bleeding, abdominal pain and other symptoms, the pregnancy can usually be observed temporarily. If the HCG value is abnormal or symptoms such as vaginal bleeding and abdominal pain occur, you should be alert to preterm abortion and seek medical examination in time and carry out fetal preservation treatment under the guidance of doctors. It is forbidden to have sexual intercourse in the early stage of pregnancy; don’t work too hard, increase the rest time; nutrition should be balanced, eggs, meat and vegetables should be added.