Early pregnancy progesterone 11.8ng/ml is not normal, belongs to the low progesterone, need to do a good review. Generally the value of progesterone in early pregnancy is greater than 25ng/ml is normal, if the value of progesterone is lower than 15ng/mL may occur in the case of preeclampsia, fetal arrest and so on. The level of progesterone after pregnancy will change with the growth of pregnancy weeks, the growth and development of fetal sacs are different, as well as progesterone test by the machine or the pregnant woman’s own physiological conditions, may lead to certain fluctuations in the value of progesterone. Progesterone value 11.8ng/ml although low, but if the blood human chorionic gonadotropin HCG value is normal, ultrasound examination of the embryo development is normal, generally do not need to worry too much, can be taken under the guidance of the doctor or intramuscular progesterone, pay attention to review. If the value of progesterone is always low, we should be vigilant about the situation of preeclampsia or fetal arrest, and if there is any abnormality, we need to terminate the pregnancy if necessary.