Human chorionic gonadotropin is known as HCG. HCG 6.6IU/L may not be pregnant, but you need to refer to the normal range of non-pregnancy on the report card by your doctor for specific judgment. The normal reference range of HCG is related to the reagents used in each hospital and the specific test method. The exact amount of HCG less than is the state of non-pregnancy, each place is different. To determine whether HCG 6.6IU/L is pregnant, you need to combine it with the normal range on the report card. However, in general less than 10 IU/L is basically not considered a pregnancy. Even if this value exceeds the normal value of non-pregnant state, the reference significance is not very big, or you need to check HCG again in a few days, according to the change of HCG to make a judgment. HCG changes very quickly after pregnancy, and the value can double every day under normal pregnancy. For more information, please consult your doctor.