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Normal hCG Levels and Pregnancy

hCG or Human Chorionic Gonadotropin is the pregnancy hormone produced by the placenta as soon as implantation happens about one week after fertilization and ovulation. As soon as the embryo implants and the placenta attaches to the uterine lining, hCG enters the circulation as eventually is excreted into the urine.

One single hCG value does not tell you much about the viability of the pregnancy and there is a wide range of normal hCG levels in pregnancy. 

A normal hCG rise over several days prior to 6 weeks of the pregnancy usually indicates a viable pregnancy. Calculate your hCG change with the BabyMed hCG Calculator.

In general, after 6-7 weeks the best indication of a healthy pregnancy is a good fetal heartbeat. Blood hCG levels are useless for testing the viability of the pregnancy if the hCG level is well over 6,000 and/or after 6-7 weeks days of the pregnancy.

Instead of the hCG, after 6 weeks or an hCG above 6,000 mIU/cc the health of the pregnancy can best be confirmed with a sonogram to confirm the presence of a fetal heart beat. Once a fetal heart beat is seen, the hCG levels don't tell you much more about the pregnancy viability. 

There is a wide range of normal hCG values and the values are different in blood serum or urine.

Urine hCG levels are usually lower than serum (blood) hCG levels.
Here are average serum (blood) hCG values: 

Weeks from LMP Normal amount of serum hCG
3 weeks 5-50 mIU/cc
4 weeks 4-426 mIU/cc
5 weeks 19-7,340 mIU/cc
6 weeks 1,080-56,500 mIU/cc
7 - 8 weeks 7,650-229,000 mIU/cc
 9 - 12 weeks 25,700-288,000 mIU/cc
13 - 16 weeks 13,300-254,000 mIU/cc
17 - 24 weeks 4,060-165,400 mIU/cc
25 - 40 weeks 3,640-117,000 mIU/cc
   

 

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