What is hCG (Human Chorionic Gonadotropin)?

Human Chorionic Gonadotropin or hCG is the pregnancy hormone produced by the placenta as soon as implantation happens, about one week after fertilization and ovulation. As soon as the embryo implants and the placenta attaches to the uterine lining, hCG enters the circulation and eventually is excreted into the urine. Many women wonder what the hCG level in early pregnancy is. In most normal pregnancies with hCG levels below 1,200 mIU/ml, the hCG usually doubles every 48-72 hours and increases by at least 60% every two days. Once it reaches about 6,000 mIU it takes longer to double and after 11-12 weeks the hCG normally decreases.

At an hCG level greater than 12,000 mIU/ml there should be a visible embryo with a heartbeat, though it could take up to an hCG level of 22,000 mIU/ml to first see the fetal heartbeat. A low hCG count in pregnancy may indicate a miscalculated date of conception, an ectopic pregnancy, or a possible miscarriage. However, a perfectly healthy pregnancy may have low hCG counts and levels. A high hCG count in pregnancy may indicate a miscalculated date of conception, a molar pregnancy, or a multiple pregnancy. Some fertility drugs usually hCG injections containing hCG may affect your hCG levels. Other than that, other medications including antibiotics and oral contraceptives will not affect your hCG level. If you are taking a fertility medication that would affect your hCG count then your healthcare provider should discuss with you how this would affect your tests.

Progesterone Levels - Routine

Should I have my progesterone level checked? ... read more »

When Is the Best Time And How Soon To Take a Pregnancy Test - When is it Positive?

The earliest time a urine pregnancy test is positive is around the time of your missed period, and a blood test will be positive 2-3 days earlier. ... read more »

What Are My Chances Being Pregnant With a Negative Pregnancy Test?

A repeatedly negative early pregnancy test when you missed your period means that you are not pregnant. ... read more »

Twins When HCG Increasing Too Fast

In most pregnancies, the normal hCG rises is at least 60% over 48 hours. In twins it may rise much more, but  it's not possible to diagnose a twin pregnancy just from the hCG levels alone. ... read more »

How Soon Can I Take a Pregnancy Test?

Most current pregnancy test kits (sensitivity 25 mIU/ml) detect hCG in the urine as early as 3-4 days after implantation, though it often takes longer. ... read more »

hCG Levels and Pregnancy Testing

This article is about normal hCG pregnancy hormone levels implantation symptoms and bleeding and early pregnancy tests ... read more »

hCG Increasing Fast

There is no sufficient scientific evidence that with twins there is always a faster-than-usual rise in hCG. Normal hCG values can vary up to 20 times in normal pregnancies. ... read more »

False Positive Pregnancy Test - Always Pregnant?

A positive pregnancy test usually means that you are pregnant. There are only a very few circumstances in which a false positive pregnancy test means that you are not pregnant . ... read more »

What Affects Normal hCG Levels In Pregnancy?

Human chorionic gonadotropin, more frequently referred to as hCG, is a hormone that is produced during pregnancy. ... read more »

Progesterone and Pregnancy Tests

Can progesterone supplements influence the test? ... read more »

Home Pregnancy Tests

Consumer Reports tested 18 pregnancy tests to find out which brands work best. Buy the top performers and follow their tips for the most accurate results. ... read more »

Positive Pregnancy Test: When Does it Happen?

A positive pregnancy test occurs only after the fertilized egg has first implanted into the uterus and then sends enough amounts of hCG the pregnancy hormone into your blood stream. ... read more »

Normal hCG Levels

When a blood pregnancy test is run, the hCG level will be reported to the obstetrician. This level will give the doctor a look into the age and the health of the pregnancy. ... read more »

Negative Blood hCG Pregnancy Test

Could I still be pregnant even though my blood hCG test was negative? ... read more »

Early Home Pregnancy Test HPT

Several brands of home pregnancy tests claim to test for pregnancy before the missed period. These tests are more sensitive to hCG. ... read more »

What Is A Phantom hCG And What Causes the False Positive Pregnancy Test

A "Phantom hCG" is a false positive blood pregnancy test. Patients with phantom hCG will have a persistently and not significantly rising positive blood pregnancy test despite a negative urine test. ... read more »

First Pregnancy Symptoms

What are the very first pregnancy symptoms I can expect? Nausea and tiredness are among the first typical pregnancy symptoms. ... read more »

Normal hCG Levels in Pregnancy

Human chorionic gonadotropin hCG levels can vary significantly in pregnancy, and  there is a wide range of normal levels in early pregnancy. ... read more »

hCG Information Levels and Numbers in Early Pregnancy

hCG pregnancy hormone information on hCG numbers in early pregnancy and all the facts are presented here. ... read more »

Human Chorionic Gonadotropin, the Pregnancy Hormone

Find out more about the pregnancy hormone hCG, how it's used to determine pregnancy, and how the concentration changes during pregnancy. ... read more »

hCG Human Chorionic Gonadotropin During Pregnancy

You will find here hCG levels and all the hCG information and facts about the pregnancy hormone which increases by at least 60% every 2 days until it reaches 1,200 mIU/ml. ... read more »

Early Symptoms of Pregnancy

Suspecting you may be pregnant or just want to educate yourself for when you do? Here is a list of those early pregnancy symptoms. ... read more »

Early Signs Of Pregnancy

Early pregnancy signs are felt by many women even before they miss their menstrual period. However most of the typical pregnancy signs and symptoms are directly related to the pregnancy hormone hCG. ... read more »

Earliest Pregnancy Symptoms And Signs

Earliest pregnancy symptoms and signs of pregnancy include nausea, vomiting, a missed period, and urinary frequency around the time of a missed period. ... read more »

Spotting With Positive HPT

Some bleeding early in pregnancy, maybe some drops or brown discharge, is also called 'spotting.' Spotting happens in 20-30% of pregnant women, usually around the time of the missed period. ... read more »

hCG Human Chorionic Frequently Asked Questions FAQs

  how soon can a pregnancy test detect hcg how long does it take for hcg to show in urine babymed hcg calculator when does urine hcg become positive ... read more »

hCG Levels and Pregnancy Test After Miscarriage

My pregnancy test was positive three weeks after miscarriage. ... read more »

What Is a False Negative Pregnancy Test?

Can you get a false negative pregnancy test and still be pregnant? Find out all about false positives, false positives and what those results really mean! ... read more »

Maternal Serum Screening

During a maternal serum screening the mother's blood is checked for a combination of different markers: alpha-fetoprotein (AFP), unconjugated estriol (uE3), and human chorionic gonadotropin (hCG). ... read more »

Evaporation Line on Pregnancy Test

The evaporation line may appear after some time and falesly indicate a pregnancy. ... read more »

Pregnancy Landmarks - When Can We Identify Them?

As pregnancy progresses you can make the pregnancy diagnoses seeing several landmarks where you would normally expect to see the pregnancy development. ... read more »

Ovulation-Induction Medications

What medications are available to induce ovulation? ... read more »

Down Syndrome Screening

You can screen for Down syndrome by ultrasound as early as 11-12 weeks. Screening is done with an ultrasound examination and two blood tests, and it can detect up to 90% of Down syndrome fetuses. ... read more »

How Often Does Miscarriage Happen?

How often does miscarriage happen? The New England Journal of Medicine studied the rate of miscarriage in 198 pregnancies. ... read more »

My Pregnancy Symptoms Disappeared

At 10 weeks, my pregnancy symptoms disappeared. I'm no longer nauseous or even tired. In fact, I feel great, but I'm worried... is this normal? ... read more »

IUI (Intrauterine Insemination) After hCG Shot

Pregnancy rates are generally higher when insemination is done before rather than after ovulation. Doing IUI after ovulation would be too late as it doesn't get you pregnant. ... read more »

Early and Home Pregnancy Test Info and HPT and hCG levels

Early home pregnancy tests detect the pregnancy hormone hCG human chorionic gonadotropin in your urine. ... read more »

Beta hCG Blood levels and Ectopic Pregnancy

The hormone Human Chorionic Gonadotropin (better known as hCG) is produced during pregnancy by parts of the placenta as early as 2-3 days after implantation or about 11 days after fertilization/ovulation. ... read more »

Pregnancy Tests - FAQs

What is a pregnancy test, how does it work, when is it positive, are there false positive or false negatives? Frequently asked questions about pregnancy tests ... read more »

Two Pregnancy Tests - Different Results

It is common to get 2 different results on two separate pregnancy tests, especially if done very early in pregnancy and on the same day. ... read more »

At What hCG Level Can You See Pregnancy on Ultrasound?

Up to one in three women experience vaginal bleeding during the firest few months of the pregnancy, and many wonder how they can make sure the pregnancy is viable. ... read more »

hCG Levels And Sex of the Fetus

Could hCG levels signify whether you may be having a boy or a girl? A recent study says there is some evidence to support this idea. ... read more »

What Is LUF Syndrome?

38 hours after the urinary LH surge, the follicle ruptures and releases the egg. Sometimes, because of abnormal development or pelvic adhesions, the ovary fails to actually release the egg. ... read more »

Breast Tenderness and Pregnancy

Is it normal to have breast tenderness 10 days after ovulation? Breast tenderness is among the typical symptoms of progesterone after ovulation, but it is also part of typical pregnancy symptoms. ... read more »

Ovulation: When Does it Happen After An hCG Injection?

Knowing when ovulation occurs after hCG injections, allows couples and doctors decide when to do IUI, intrauterine insemination and when to make love. ... read more »

Phantom hCG False Positive Pregnancy Test

A positive blood pregnancy test without a pregnancy is also known as a 'false positive' test. There are many conditions which can give a phantom false positive hcg blood or urine pregnancy test. ... read more »

Are expensive home pregnancy tests better than cheap ones?

You can find strips that turn colors to indicate pregnancy and more. As of late, pregnancy test prices have ranged from $3 to more than $20 each. Then, a new product hit the market. The dollar store pregnancy test. ... read more »

Positive Pregnancy Tests: Are They Always Accurate?

The home pregnancy test has changed quite a bit over the years. In yesteryears, you needed to wait about one week after your menstrual cycle was supposed to start before testing for pregnancy. ... read more »

Is a Blood Pregnancy Test Worth the Time and Money?

There are two types of pregnancy test – blood and urine – that most women come in contact with when trying to conceive. ... read more »

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