hCG Levels in Pregnancy

HCG Levels

hcg rendering
Rendering of hCG polypeptide

Pregnancy tests generally check a mother's blood or urine for hCG levels, Human chorionic gonadotropin. This hormone is secreted by the trophoblast following ovum fertilization and can be detectable as soon as ten days following conception.

hCG–What is it?

hCG is a hormone created during the early part of pregnancy. hCG has a few roles:

  • to maintain progesterone production by the corpus luteum;
  • to maintain the endometrium for the first trimester;
  • to stimulate fetal gonad development and androgen synthesis by the fetal testes;
  • to stimulate the secretion of estrogen and development of the placenta.

hCG Injections and hCG Levels Testing

Infertility treatments to trigger ovulation or to lengthen the luteal phase of your cycle that feature hCG injections such as Profasi or Pregnyl can create some problems. A woman will need to wait as many as fourteen days for the hormone to leave her body (although this is dose-dependent and can also differ from one woman to the next), otherwise she runs the risk of getting a false positive on a pregnancy test.

False positives can be avoided by taking two consecutive quantitative hCG beta blood tests. If the second test shows a hCG levels increase, the chances are good you're pregnant.

Featured Ebook

The Ivf Success Program Ebook written by Diana Farrell, M.A., Researcher, Author and Health Consultant, will teach you how to overcome the odds and get pregnant with just one IVF cycle. Read More

How Do I know if I Need a Test for hCG Levels?

You shouldn't have to ask; typically your doctor will run routine tests for hCG levels in order to make sure the fetus is still viable, especially following infertility treatments such as AI or IVF. He may also want to run the tests to rule out an ectopic pregnancy, especially if a woman has had one before, or she is presenting the appropriate symptoms (pain, bleeding, cramps). Additionally, the doctor may decide to run a series of tests to determine hCG Levels if he or she can't find the fetus on an ultrasound, or if the woman is suffering from vaginal pain or bleeding.

Can I Test My hCG Levels At Home?

You can test your hCG levels with a simple home pregnancy test. In fact, the common "pee on a stick" pregnancy tests measure hCG levels. They are considered reliable but not as accurate as a test you might receive in a doctor's office.

Dive Deeper


The information provided on ConceivingConcepts.com is designed to support, not replace, the relationship that exists between a patient/site visitor and his/her health professional. This information is solely for informational and educational purposes. The publication of this information does not constitute the practice of medicine, and this information does not replace the advice of your physician or other health care provider. Neither the owners or employees of ConceivingConcepts.com nor the author(s) of site content take responsibility for any possible consequences from any treatment, procedure, exercise, dietary modification, action or application of medication which results from reading this site. Always speak with your primary health care provider before engaging in any form of self treatment. See our Legal Statement for more details.

Fertility Clinics Directory

Find a Fertility Clinic

If you or a loved one is suffering from infertility and needs help conceiving then we are here to offer help in any way we can. We have over 450 Fertility Clinics listed on our Directory. Click here to search for a Fertility Clinic that is right for you.