Three to four days of pregnancy refers to the time when a woman becomes pregnant. After a woman becomes pregnant, the fertilized egg will move towards the uterus and enter for implantation and development, which requires a certain process. This process takes about six or seven days, which means it takes about eight days from intercourse to pregnancy. Can it be tested three or four days pregnant?
If the pregnancy cannot be detected within four days, the test strips from regular manufacturers are generally more accurate. Sperm can reach the female's fallopian tube within 24 hours after intercourse and combine with the egg released by the female to form a fertilized egg. The fertilized egg, propelled by cilia inside the fallopian tubes, can reach the uterus in approximately 6-7 days; If the conditions are suitable, implantation can be done on the endometrium. The implantation of fertilized eggs is a sign of pregnancy in women. It usually takes about 8 days from sexual intercourse to pregnancy. After 3 days of pregnancy (approximately equivalent to the 11th day after sexual intercourse), using early pregnancy test strips can accurately display the results of pregnancy.
Early pregnancy test strip is a product designed by people to facilitate women's detection of pregnancy. Early pregnancy test strip: Drop urine into the detection hole on the test strip. If a colored band appears in the control area of the test strip, it indicates a negative result and indicates that the patient is not pregnant; On the contrary, if there is a clear color band in the detection area, it indicates a positive result and pregnancy. Early pregnancy test strips can only be used as a preliminary screening test and may result in false positives or false negatives.
The detection reagent is based on the principle of immunochromatographic double antibody sandwich method, and HCG detection test strips are made, which can measure HCG in urine samples within 3 minutes. During testing, when the urine sample is siphoned through colloidal gold labeled antibodies, an antigen antibody colloidal gold complex is formed, which continues to crawl. When it passes through the coated anti HCG alpha subunit Mcab, a double antibody sandwich colloidal gold complex is formed, presenting a color band at the coating line. Excess colloidal gold antibodies continue to crawl and form a colloidal gold immune complex with the sheep anti mouse control line, presenting a color band.
Through the introduction of this article, it can be known that pregnancy can be detected by test strips after three or four days of pregnancy. At the same time, this article also introduces how to use test strips to detect pregnancy. As a woman, it is best for you to know the contents introduced in this article, so that you can know if you are pregnant as early as possible and take measures to deal with it as soon as possible.
