Patient's question:
A woman is 27 years old this year. She has no symptoms, just that her period is delayed by some days and hasn't come yet, so she doesn't know if she is pregnant. She wants to know how long it takes for a pregnancy test to show results.Doctor's answer:
The working principle of using early pregnancy test strips for self-testing is to detect hCG levels, which is the value of human chorionic gonadotropin. This hormone is produced by the placenta and typically reappears in the urine a few days after conception. However, due to its small amount, it becomes difficult to detect until about 10-14 days after conception.2. For women who have just conceived, it is generally recommended to use the first urine of the morning for testing, as the results are more accurate. However, for women who have been pregnant for a longer period, any urine sample taken at any time during the day can be used for testing.
3. It usually takes about 7 days from sexual intercourse to conception. This means that on the day of conception (equivalent to 7 days after intercourse), testing can be done to confirm pregnancy, but the accuracy is not high. Generally, the results are more accurate if testing is done 14 days or more after intercourse.