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Hcg Levels After Implantation

Hcg Levels After Implantation

What Is HCG Human Chorionic Gonadotropin?

HCG stands for "Human Chorionic Gonadotropin," the pregnancy hormone, which is produced by the placenta and which is detected in the blood within a few days after implantation. When you test at home with a pregnancy test, you actually test for the presence of HCG in the urine. If HCG is present, then the pregnancy test will be positive, and that means you are pregnant unless there is a false positive pregnancy test.

Where does HCG come from?

HCG comes from the placenta and enters the blood soon after implantation and is detected via pregnancy tests. HCG starts to be produced by the placenta as soon as implantation occurs. This happens about one week after fertilization and ovulation when the embryo implants and the placenta attaches to the uterine lining.

What do low HCG levels mean?

Low HCG levels can mean a few possible outcomes, and it’s important to consult with your doctor to know for sure:

Miscalculation of pregnancy dating: How many weeks pregnant you are can be tricky to calculate because pregnancy begins at the time of implantation, but most doctors calculate pregnancy beginning from your last missed period (yes, they count it before you were even pregnant!) If you’re not sure when ovulation occurred, then pregnancy dating and the expected HCG levels may not be accurate. A more accurate way to date the pregnancy would be via ultrasound.

Blighted ovum: This type of miscarriage happens when a fertilized egg does not develop into an embryo. So, while you might get a positive pregnancy test, HCG levels will not rise normally and stay low. Most of the time, causes of miscarriage are chromosomal abnormalities that happen due to random chance. So, getting pregnant after miscarriage, like after a blight ovum, is definitely possible.

Ectopic pregnancy: If HCG levels are not rising normally or are rising erratically, then it’s possible that implantation has occurred outside of the uterus (aka ectopic pregnancy). Unfortunately, the embryo cannot be saved in this scenario and it’s important to seek medical consultation as soon as possible as rupturing of an ectopic pregnancy can result in serious health consequences for you.

What Is Implantation And How It Affects Pregnancy?

Implantation is the process of attachment of your baby’s cells to the wall of your womb. It is the first step before your baby starts developing.

Implantation is the most crucial step because if the embryo doesn’t attach in the right place, then pregnancy won’t sustain.

What is HCG?

Human chorionic gonadotropin – or HCG – is frequently called the “pregnancy hormone”. Most trying-to-conceive women who have taken more than a few pregnancy tests already know that HCG is the hormone that is detectable by pregnancy test kits (or by HCG blood tests in your doctor’s office). However, typically only doctors know the details behind HCG and its function as a reproductive hormone. The purpose of this article is to discuss HCG – what its purpose is, how fast HCG increases in a pregnant woman’s system, and when you can begin testing during your cycle.

How pregnancy tests work

Think you might be pregnant?

Even with the most effective birth control methods, there’s always a chance for error. After all, it takes just one sperm to fertilize the egg. Finding out whether or not that’s happened is as easy as taking an over-the-counter (OTC) pregnancy test.

OTC pregnancy tests typically test your urine for a hormone called human chorionic gonadotropin (HCG). HCG is only present if you’re pregnant. The hormone is only released if a fertilized egg attaches outside the uterus or to your uterine lining.

There are different ways to collect your urine for the test. Depending on the test you choose, you may have to:

  • collect your urine in a cup and dip a testing stick into the liquid
  • collect your urine in a cup and use an eyedropper to move a small amount of fluid into a special container
  • place the testing stick into the area of your expected urine stream so that it will catch your urine midstream

According to Cleveland Clinic, most tests are 99 percent effective if taken after a missed period. The best part is that you can do it in the privacy of your own home. Simply open the test, follow the instructions, and wait for the recommended amount of time to view the results.

After the recommended waiting time has passed, the tests will display your results in one of the following ways:

  • a change in color
  • a line
  • a symbol, such as plus or minus
  • the words “pregnant” or “not pregnant”
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