The age of pregnancy cannot be accurately determined from a single measurement of beta hCG levels. The level of beta hCG (chorionic gonadotropin) in the blood can be used to determine the age of pregnancy. However, the level of beta hCG alone is not sufficient to precisely determine exactly which week of pregnancy it is. To more accurately determine the age of pregnancy, it is best to consult a gynecologist who, based on your test results, menstrual history and physical examination, will more accurately estimate the age of pregnancy. If you are unable to get to your primary care doctor, the GdziePoLek.pl service also allows you to obtain a teleconsultation with a doctor: https://www.gdziepolek.pl/telekonsultacja