Is a progesterone level of 1.2 nmol/L normal?

Under normal circumstances, a progesterone level of 1.2 nmol/L is generally within the normal range if the individual is non-pregnant or postmenopausal; however, if the person is pregnant—especially in early pregnancy—this value is significantly below the normal range and may indicate an increased risk of pregnancy complications. If concerned, it is recommended to seek medical advice promptly. Detailed analysis is as follows:

If the individual tested is not pregnant or has already reached menopause, progesterone levels are naturally low. A value of 1.2 nmol/L falls within the expected normal range for this physiological stage, indicating no endocrine abnormalities. No special intervention is required, and this situation is considered normal.

If the individual is pregnant, particularly during the first trimester (the first three months of pregnancy), progesterone levels should typically remain at a higher level to support embryonic development. A level of 1.2 nmol/L is far below the normal standard for this stage and may suggest luteal phase deficiency, abnormal embryonic development, or an elevated risk of miscarriage. This scenario is considered abnormal and requires further evaluation and testing.

Upon finding a progesterone level of 1.2 nmol/L, it is important to first determine whether one is pregnant. If pregnant, prompt medical consultation is necessary to perform additional tests such as ultrasound to assess embryonic development. For non-pregnant individuals, if symptoms such as menstrual irregularity are present, endocrine function should also be evaluated. Follow medical advice for subsequent monitoring or treatment, and avoid self-diagnosis that could delay timely intervention.