How many days of pregnancy can I use the test strips?

Pregnant mothers who want to have a baby must be eager to know whether they are pregnant! How long does it take to test the pregnancy with a test strip? How can you use pregnancy test strips, pregnancy test sticks and other pregnancy test methods to test your pregnancy? How to confirm that you are pregnant? So let's take a look at how many days during pregnancy can you use the test strip?

How many days during pregnancy can I use the test strips?

Like professional medical tests, the principle of pregnancy test is to test the HCG value, that is, the value of hcg gonadotropin in the body. How long does it take to detect pregnancy using test strips?

The body's hCG gonadotropin is produced by the embryo and usually appears in the urine a few days after pregnancy. However, due to the small amount, it is not easy to test it at the beginning, and it will become increasingly obvious from 10 to 14 days. (HCG value can also be measured through blood test, and it is much more accurate). Although many pregnancy test strips indicate that women have missed the

Normally, a pregnancy test can be done one day after the menstrual period, but in fact, the rate and amount of HCG hormone secretion in pregnant women are not necessarily the same, it varies from person to person. "If you have to do a urine test, the negative result may be incorrect." said an obstetrician and gynecologist. Therefore, it is best to take a pregnancy test two weeks after your period is delayed, so that the result will be more reliable. It is available in general pharmacies.

The principle of using early pregnancy test strips for pregnancy testing is to test the HCG value, that is, the value of hcg gonadotropin in the body. This type of growth hormone is produced by the embryo, and the body begins to metabolize hCG gonadotropin 10-14 days after pregnancy. After metabolism, it first appears in the blood, and then appears in the urine along with the respiratory system. However, due to the small amount, it is not easy to test it at first, and it becomes increasingly obvious after 1-2 weeks of pregnancy. Neither too early nor too late will have good results.

1. The morning urine test is more accurate for women who have recently become pregnant. But for women who have been pregnant for some time, urine at any time of the day can be used for testing. 2. It usually takes about 7 days for the embryo to implant. In other words, you can test whether you are pregnant on the day of pregnancy (equivalent to 7 days after having sex). 3. It can be used 7 days after the menstrual cycle is delayed or 10 to 14 days after intercourse, or at the beginning about 33 days after menopause. If the early pregnancy test cannot show whether you are pregnant, you can do another test about 37 days after menopause.

How to use early pregnancy test paper

1. Clarify on-site sampling: the test can be carried out on the day the menstrual period is due, or 7-10 days after intercourse. 2. Test method: Collect urine (preferably the first morning urine), insert a small test strip, and observe the result within 5 minutes. 3. Interpretation of test results: Positive: Printed color bands appear above and below the test strip, indicating pregnancy.

Negative: Only a dark purple band appears above the test strip and no color band appears below, indicating no pregnancy. Failed: No color band appears. Indicates that the test strip is invalid.

Common problems with using test paper

1. The liquid level cannot exceed the MAX line. 2. It is best to test the urine immediately. It can be placed at room temperature for 8 hours or in the refrigerator for 24 hours. It must be restored to room temperature when testing.

How long does it take to detect pregnancy?

Modern cities are very busy, and many pregnant women may not realize they are pregnant early. So, at each stage of pregnancy, generally speaking, how long does it take to detect pregnancy? And how accurate is it?

7-day pregnancy test: less accurate

Since we judge pregnancy based on the concentration values ​​of blood HCG and urine HCG, there is a whole process for the change of HCG concentration values ​​during pregnancy. Even if you use water HCG pregnancy test, you can only get an accurate test after 9 days of fertilization.

Using water HCG pregnancy test can only be accurate after 9 days of fertilization

10-day pregnancy test: can be detected by blood test

Generally speaking, pregnancy can be detected ten days into the pregnancy based on blood tests. However, early pregnancy test strips and pregnancy test sticks are not very accurate at this time. 20-day pregnancy test: can be tested by pregnancy test paper, pregnancy test stick, urine test

Pregnancy can basically be detected at 20 days, but it may be a little early to confirm it based on B-ultrasound at this time. It is not visible with B-ultrasound during the 20th day of pregnancy. At this time, you can try to diagnose the results based on pregnancy test strips, pregnancy test sticks, blood tests, urine tests, etc. If you want to confirm it with ultrasound, the best time is to wait 45 days.