How many days after conception can a pregnancy test stick detect pregnancy?

Pregnancy can generally be detected using a pregnancy test kit as early as 6 days after conception. For women with a normal menstrual cycle, theoretically, self-testing for pregnancy can begin 6 to 7 days after sexual intercourse. However, at this point, due to potentially low hCG levels, the test results may not be accurate. Around 10 days after sexual intercourse, hCG levels begin to gradually increase, and the accuracy of using a pregnancy test kit at this time will be relatively higher. hCG levels become increasingly evident between 10 and 14 days, and at this stage, the pregnancy test kit can basically accurately determine whether a woman is pregnant. The concentration of hCG in the first urine of the day (morning urine) is relatively high, so using morning urine for testing can yield more accurate results. Before testing, avoid consuming medications or foods that may interfere with hCG levels. Although pregnancy test kits are convenient and easy to use, their results are not 100% accurate. If the pregnancy test kit shows positive or suspected positive results, it is recommended to undergo further blood hCG testing and B-mode ultrasound examination at the hospital to confirm pregnancy and understand fetal development. If the pregnancy test kit shows negative but there are still concerns about pregnancy, you can take the test again after a few days or visit the hospital for a professional examination. Regardless of the test results, they should be combined with professional hospital examinations to confirm pregnancy.