Progesterone values are not the same every day, but are in a dynamic state of flux, changing from moment to moment. Progesterone is a natural progesterone hormone necessary for maintaining pregnancy. Progesterone levels rise steadily with the duration of pregnancy, with progesterone levels ranging from 4.73 to 50.74 ng/ml in early pregnancy and 19.41 to 45.3 ng/ml in mid-pregnancy and fluctuating according to individual body type and diet. Progesterone can vary from pregnancy to pregnancy at different times, but just make sure it is within the normal range. It is worth noting that a low progesterone value in early pregnancy is likely to cause preterm miscarriage and extra attention should be paid to whether the progesterone value is normal. If the progesterone value is low, you should consult a doctor in time for medication to preserve the fetus and other treatments.