Is a blood test for pregnancy accurate?

Drawing blood to test whether you are pregnant is the most commonly used method to confirm pregnancy in clinical practice. Because the test results have a small error and can detect whether you are pregnant within a very short time, women should understand these methods of testing whether they are pregnant in their lives. This will help them to ensure their health and determine whether they are actually pregnant.

Blood HCG can clearly check the hormone levels during pregnancy. Compared with traditional urine HCG, blood HCG is more accurate, has smaller errors, and can be tested earlier. HCG can be tested by blood draw 7 days after the fertilized egg implants, that is, 7 days after ovulation and intercourse. The accuracy of blood drawing is very high, almost 100%.

What should you pay attention to when doing early pregnancy tests? Experts remind that early pregnancy tests should pay attention to the following aspects:

1. Early pregnancy test method

Early pregnancy test methods include early pregnancy test strips, basal body temperature test, B-ultrasound examination, blood HCG, etc. The simplest and most convenient method is the early pregnancy test strip. If you are pregnant, two short purple-red lines will appear on the test paper; if you are not pregnant, only one short purple-red line will appear on the test paper. The most accurate method of examination is blood HCG test.

2. The best time for early pregnancy test

The best time to do an early pregnancy test varies depending on the test method:

Early pregnancy test detection time: Generally, you can use early pregnancy test to check whether you are pregnant about 7-10 days after your period is delayed. If the test paper shows two red lines, it means you are pregnant, otherwise you are not pregnant.

Basal body temperature test for early pregnancy: Basal body temperature test can be said to be the earliest method to detect whether you are pregnant. Generally, a woman's body temperature is below 36.5 degrees before ovulation, and rises by 0.3-0.5 degrees after ovulation. If the egg is not fertilized, progesterone levels will drop after about a week and body temperature will return to normal. If pregnant, the body temperature remains high. This method is more troublesome, so it is not used by many women.

B-ultrasound examination time: Generally, you can go to the hospital for a B-ultrasound examination to see if you are pregnant when your period is delayed for about half a month.

Time for blood HCG test for pregnancy: Generally, you can go to the hospital for a blood HCG test about 20 days after having sex to check the HCG content in the blood

If you are pregnant, you need to pay attention to physical health checks, because only when we pay attention to these issues can we understand the healthy development of the fetus. Many women do not realize it after they become pregnant, so they always do things that threaten the health of the fetus. Therefore, every woman should pay attention to scientifically check whether she is pregnant.