In many early pregnancies, the hCG level will double every 31 to 72 hours. As the pregnancy progresses, hCG levels rise and the doubling time increases.
| "Normal" Doubling Time |
| hCG levels |
Doubling Time |
| Under 1200 mIU/ml |
31-72 hours |
| Between 1200 to 6000 mIU/ml |
72-96 hours |
| Over 6000 mIU/ml |
more than 96 hours |
hCG levels rise during the first 6 to 10 weeks of pregnancy then decline slowly during the second and third trimesters.
|
|
| Human Chorionic Gonadotropin (hCG) Levels |
| From Conception |
hCG Level |
| 0-1 Weeks |
0 - 50 mIU/ml |
| 1-2 Weeks |
40 - 300 mIU/ml |
| 3-4 Weeks |
500 - 6,000 mIU/ml |
| 1-2 Months |
5,000 - 200,000 mIU/ml |
| 2-3 Months |
10,000 - 100,000 mIU/ml |
| 2nd Trimester |
3,000 - 50,000 mIU/ml |
| 3rd Trimester |
1,000 - 50,000 mIU/ml |
| Non-Pregnant Women |
< 5.0 mIU/ml |
| Postmenopausal Women |
< 9.5 mIU/ml |
|
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