Beta HCG levels can be measured in the blood by RIA (radioimmunoassay) , CLIA (chemiluminescent assay) and DELFIA ( fluorescent immunoassay) testing; and positive levels (more than 10 mIU/ml) in the blood can be detected as early as 2 days before the period is missed. In the old days, the only way of determining the presence of HCG was by testing the urine, i. e, by using urine pregnancy test . The unit of measurement for hCG levels is milli-international units per milliliter (mlU/ml). When you take a pregnancy test, what it really means is that you are checking for the presence of hCG. If you are pregnant, your hCG level is normally more than 25 mlU/ml. An hCG level of less than 5 mlU/ml will give a negative pregnancy test result.. Question: Hcg level in urine is 10 miU/ml n result is written negative Serum beta hcg level is <0.100 miU/ml Is it too early or is it clear negative? M very confused M very confused Answer : Hi, dear your both urine and blood hcg is very low and its negative but if still you wish then get it checked again after 24 hour and if the level is increasing then you are pregnant if not then its clear . 25 - 40 weeks LMP: 3,640 - 117,000 mIU/ml These numbers are just an indication, every woman’s level of hCG can rise differently. Most women can expect their levels to return to a non-pregnant range about 4 - 6 weeks after an abortion.. Human chorionic gonadotropin, or hCG, is a hormone produced during pregnancy in the cells of the placenta.Especially in early pregnancy, the amount of hCG present in the mother's body rises rapidly.In fact, it is the hormone detected in the urine by at-home pregnancy tests.. Doctors give trusted answers on uses, effects, side-effects, and cautions: Dr. Singh on beta hcg less than 2: It means there is no detectable HCG hormone and you are not pregnant..