Pregnancy hCG levels - What is considered normal?
What are pregnancy hCG levels, and why should are they important to pregnant women? Human Chorionic Gonadotropin, which is the abbreviation in long form, is the pregnancy hormone produced by the developing placenta in early pregnancy. It is what causes you to have a positive pregnancy test result. Beta level is also a term used when referring to amount of hCG hormone found in pregnant women.
These numbers can vary from woman to woman, so it is important not to get too wrapped up in them. But what is common is that your hCG levels rise and/or double every 3 days in the very early stages of pregnancy. This hormone can be detected as early as 7 to 8 days after conception, but in most cases the beta level will not be high enough to confirm pregnancy until day 10 or 11. Depending on the test used, and your body's hormone production rate, it may take even longer than that. The pregnancy hCG levels are measured in the form of mIU/ml. This abbreviation stands for milli-international units per millimeter. It is a unit of measurement that measures volume. Knowing all of this, what is the average hCG levels in early pregnancy?
- 7 days or 1 week after conception - 0 to 5 mIU for a single pregnancy.
- 2 weeks after conception (4 weeks from LMP) - 5 to 426 mIU/ml
- 3 weeks after conception (5 weeks from LMP) - 18 to 7,340 mIU/ml
- 4 weeks after conception (6 weeks from LMP) - 1,080 to 56,500 mIU/ml
- 5-6 weeks after conception (7-8 weeks from LMP) - 7,650 to 229,000 mIU/ml
- 7-10 weeks after conception (9-12 weeks rom LMP) - 25,700 to 288,000 mIU/ml
- 11-14 weeks after conception (13-16 weeks from LMP) - 13,300 to 254,000 mIU/ml
- 15-24 weeks after conception (17-26 weeks from LMP) - 4,060 to 165,400 mIU/ml
- 25-38 weeks after conception (27-40 weeks from LMP) - 3,640 to 117,000 mIU/ml
- After birth or miscarriage (from days up to 6 weeks) - back down under 5 mIU/ml
At what hCG level does a pregnancy test show a positive result?
Most early at home pregnancy tests will not pick up on the beta level in your urine until 25 to 50 mIU/ml has been reached. That is why you get the most accurate readings if you test at least one day after you have missed your period. It is also best to test the first thing in the morning because that is when the hormone concentration is at its highest level.
Do not focus too much on the actual number. There are women whose levels will vary slightly, and with twin or multiple pregnancies they may be off the chart altogether. In early pregnancy it is the progression and rise of the pregnancy hCG levels that is important. If your beta level does not progress at a certain rate or they begin to fall within the first trimester then this may be a sign of possible miscarriage or ectopic pregnancy. But since women are different and their body reacts to carrying a baby in many ways, it is best to have a doctor make any determinations regarding the health and well-being of your fetus during your pregnancy weeks.
