Progesterone 28ng/ml alone does not determine whether the value is normal or not, the value of progesterone is different in pregnancy or non-pregnancy and cannot be generalized. For example, post ovulation progesterone 28ng/ml is normal in non-pregnancy, first 6 weeks progesterone 28ng/ml is normal in pregnancy and may not be normal in other cases.
When a woman is not pregnant, progesterone is not constant throughout the menstrual cycle. Before the follicle matures, progesterone is about 1.0ng/ml or less, and after ovulation, progesterone will rise and can reach 30~40ng/ml, and a normal value of 15ng/ml or more indicates that there is ovulation.
The value of progesterone is different at different weeks of pregnancy, for example, the value of progesterone at 6 weeks of pregnancy is between 25~52ng/ml, and the value of progesterone at 7 weeks of pregnancy will be doubled, whether the value of progesterone is normal or not should be combined with the specific situation to judge, and can not be generalized.
Women can find out whether the progesterone value is normal or not under the guidance of the doctor after the examination.