The normal range of progesterone value at 6 weeks of pregnancy is as follows:1. For women aged 19-25 years old, the normal range of progesterone value at 6 weeks of pregnancy is between 0.515-0.53 μmol/L, because the hormone level in the body will have a more obvious rise when pregnant, so the content of progesterone will also have a slight rise.2. For women aged 25-33 years old at 6 weeks of pregnancy Progesterone levels range from 0.59-0.65 μmol/L because the endocrine system of women aged 25-33 years is more complete and mature, and the levels of progesterone will be higher during pregnancy. 3. Progesterone levels in women aged 34 years or older at 6 weeks’ gestation will decrease slightly, and range from 0.49-0.62 μmol/L, because women aged 34 years or older have relatively slow metabolisms and slightly decreased endocrine function. The progesterone level is relatively low because of the relatively slow metabolism of women over 34 years of age and a slight decline in endocrine function.