Through pregnancy tests, a person can determine the levels of hCG in their urine. The hCG increases gradually when a woman is pregnant. Other than pregnancy, the hCG amount is too low. However, some women may experience miscarriage.
So, what's the level of hCG when a person has a miscarriage? It has been observed that hCG still stays in your system after miscarriage. To know how long it lasts in a system and more about it, read this blog till the end of it.
What is hCG?
The complete form of hCG is Human Chorionic Gonadotropin. It is a hormone naturally produced by the placenta when someone is pregnant. hCG is responsible for thickening the uterine lining. Hence, it supports the growing embryo and informs the body to stop menstruation.
It is often called a pregnancy hormone. After 10 to 11 days of conception, it's naturally produced. The levels of hCG are higher in the first 10 weeks of pregnancy. Then, gradually, it reduces down towards the rest of the pregnancy.
How long does hCG give positive pregnancy results after miscarriage?
Even after miscarriage, some women may find positive pregnancy results. This is due to the levels of hCG that stay in your system. So, the time for how long it will give positive results depends on the stage of pregnancy you were at.
Also, the reasons for miscarriage are responsible for positive results. hCG is produced depending on the kind of pregnancy. hCG is a hormone produced by the placenta. hCG warns the body to thicken the uterus lining to stop the menstruation.
When the menstruation cycle stops, the uterus lining grows and produces several hormones responsible for a healthy pregnancy. During the first 8 to 10 days, the blood has low hCG levels. It increases at the end of the first trimester.
Various hCG levels in a body
The levels of hCG may vary during certain times, as below.
- Under 10 U/L: You aren't pregnant.
- 10 to 25 U/L: Early pregnancy.
- Above 25 U/L: Positive pregnancy.
- 200 to 32000 U/L: you are 5 to 8 weeks pregnant.
- 32000 to 210000 U/L: You are 6 to 12 weeks pregnant.
- 1400 to 53000 U/L: You are 25 to 28 weeks pregnant.
- 940 to 60000 U/L: You are 29 to 41 weeks pregnant.
The hCG levels also depend on the number of babies you are carrying. The higher the babies, the higher the hCG levels. In around 443 women experiencing miscarriages, the hCG levels drop faster.
In 35 to 50% of women, hCG reduces in 2 days after miscarriage. In 66 to 87% of women, hCG is reduced in 7 days.
Causes of high hCG levels beyond pregnancy
There are various causes of high hCG levels beyond pregnancy. They are:
Fertility treatments
Sometimes, hCG injections can be the reason for high levels of hCG in a body. Fertility treatment includes hCG injections. After you are given an injection, hCG levels remain high for a few days. On average, an injection requires 10 days to get out of the body.
Molar pregnancy
The levels of hCG last longer in women who experience miscarriages due to molar pregnancy as compared to women who experience miscarriages due to other reasons. The reason behind this is incomplete miscarriage.
During an incomplete miscarriage, the pregnancy tissue remains in the body that keeps producing the hCG hormone.
New Pregnancy
Sometimes, the hCG levels in a system remain higher due to a new pregnancy. It means you are pregnant much faster than you expected. You can again conceive in just 2 weeks after miscarriage.
Other causes of high hCG levels
The hCG levels can be high because of several other reasons despite you not being pregnant. Certain types of cancers such as breast, ovarian, lung, pituitary, and more cancers may increase hCG levels in a body.
Is it essential to have hCG levels to Zero before conceiving again?
No, it is not essential to have zero hCG levels before conceiving again. Just ensure that the hCG levels are too low. It should be such that it can't be detected in a blood test. The high hCG levels can give you a false positive pregnancy test.
Earlier, after miscarriage, women were expected to try conceiving again after complete 6 months. But no evidence proves that you need to wait this long to conceive. Doctors these days recommend to avoid conceiving for 2 weeks after miscarriage.
Women can again be pregnant after 2 weeks of having a miscarriage. It all depends on you whether you are ready to conceive again or not. Don't try to conceive again before generic testing if you have already faced more than one miscarriage.
Final words
So, hCG is a natural hormone produced by the placenta during pregnancy. After miscarriages, the hCG may last for a few days in your system. Hence, wait for 2 weeks approximately to conceive again, or else you may experience a false positive test.
If you experienced a miscarriage in the very first week of pregnancy, no worries. You have low hCG levels. However, the women experiencing miscarriages at the end of the first trimester have the highest hCG levels.
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