A beta HCG test measures the level of human chorionic gonadotropin (HCG) hormone in your body, which is produced during pregnancy. While a result of 45.6 indicates the presence of HCG, it is important to note that the interpretation of the result depends on various factors such as the timing of the test and the reference range used by the laboratory. Generally, an HCG level above 25 mIU/mL is considered positive for pregnancy. However, it is recommended to consult with your healthcare provider who can evaluate your specific situation and provide accurate guidance based on additional tests or examinations if necessary.