How Does a Pregnancy Test Work?

By Alberta Dowse

A pregnancy is very important for any woman, therefore any woman wants to know for sure if she's pregnant or not as early as possible; as the "old" pregnancy signs have proved to be false sometimes, women prefer to try any methods which can give them an accurate result. Nowadays, the most handy and the most accurate method to find out the truth about a pregnancy is a pregnancy test.

There are two types of pregnancy tests: blood tests (which can only be taken on a clinic) and urine ones (which can be taken even in the privacy of your own home). Both of them are working by the same principle : they have to detect the presence and levels of hCG (human chorionic gonadotropin) in a woman's body. This hormone, known as the pregnancy hormone too, appears in her body only when she gets pregnant and it is produced by the placenta after a fertilized egg implants in the uterine wall, implantation which does not occur until 6 days after ovulation.

The difference between those tests is the way they are using to detect the presence of hCG: as their name suggest, those blood tests (also called clinic tests) are using a woman's blood to detect it and those urine ones (also called home tests) are using her urine. As any other hormone, this hCG appears first in the blood and only then in the urine, therefore those clinic tests can give a more accurate result earlier than the home ones.

However, the most chosen tests are the home ones, not only because they offer you the possibility to find out about your pregnancy in the privacy of your own home, but also because of their cheaper prices and their important features: most of them have an accuracy level of over 99%, are easy to use, easy to read ( for example those digital ones can give you the result spelled out in simple words: "Pregnant" or "Not Pregnant") and very fast.

Pregnancy tests are an excellent modern discovery that help women all around the world find out the truth without relying on "old fashioned" signs. The working principle is pretty simple and yet very accurate - so enjoy the benefits! - 30525

About the Author:

Sign Up for our Free Newsletter

Enter email address here