Normal HCG levels during Early Pregnancy
Thursday, August 26th, 2010
The body produces a hormone called Human Chorionic Gonadotropin when a woman becomes pregnant. Hence a pregnancy test is besides other criteria a detection of presence of normal HCG levels during early pregnancy. Soon after the zygote/embryo implants in the uterus this hormone which is produced by the placenta enters the stream of blood. Given below are the normal referrals for a pregnancy test.
- HCG below 5mIU/ ml : Result : negative or not pregnant
- HCG Between 5mIU and 25 mIU / ml: Result Inconclusive: may or may not be pregnant. Test to be repeated after a gap of at least 2 days for confirmation.
- HCG above 25 mIU / ml: Result: Positive. The woman is pregnant.
So what does the presence of HCG indicate other then being pregnant? Normal HCG levels during early pregnancy have to steadily increase during pregnancy and hence the repeat test for confirmation and viability of pregnancy. The steady increase in levels of HCG especially in the first three months is an indication of a healthy pregnancy and if the HCG levels are too low then it is an indication of impending miscarriage. Of course later in the first trimester after the seventh week a healthy heart beat of the fetus is indicative of a healthy pregnancy.
Normal HCG levels during early pregnancy- Some facts:
1. In a normal and healthy pregnancy the HCG levels will become twice the amount in every two to three days. If you have 25mIU /ml on day one then you will have 50 mIU /ml on day three or day four.
2. During the second and third trimester the time taken to double HCG levels may increase to four days.
3. However it is very important to remember that in some cases normal HCG levels during early pregnancy is low and the woman can still have a healthy pregnancy and a good delivery. In such cases an ultra sound will give a clearer picture of the baby’s development and the progress of pregnancy.
4. The unit of measurement for hormone HCG is milli-international units per milliliter.
5. Normally an ultra sound is taken only during the end of second month. This is because the trans-vaginal ultrasound will then be able to detect the amniotic sac or the gestational sac because the normal HCG levels during early pregnancy would have gone above 1000 mIU/ml and be probably closer to 2000mIU/ml.
6. It is advisable not to depend on a single test of HCG levels. A series of tests done with a gap of at least two to three days can give more accurate results and reading of the pregnancy situation.
7. Since normal HCG levels during early pregnancy can differ from woman to woman, it is not proper to calculate the date of conception based on the HCG count.
8. The HCG tests for pregnancy are of two types. The “Qualitative” test for HCG will indicate its presence in the blood confirming or denying a pregnancy. The “Quantitative” test for HCG known as beta HCG will give you the levels of HCG present in the blood stream. This will be useful for any corrective action if necessary.
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