If you use an electronic pregnancy test 1-2 weeks after intercourse, the accuracy is generally quite high, but it should be noted that a positive pregnancy test cannot rule out other factors, such as gestational trophoblastic disease. The electronic pregnancy test is to determine whether the pregnancy through the detection of urine HCG, usually, about 10-14 days after intercourse urine HCG can show positive, so if you go to the test 1-2 weeks after intercourse, the result suggests that two bars, the possibility of pregnancy. Because the electronic pregnancy test is a qualitative test, we cannot rule out the possibility of other diseases causing it to be positive, for example, trophoblastic diseases of pregnancy such as hyperemesis gravidarum, which can also be manifested in a positive pregnancy test. Therefore, if the electronic pregnancy test is positive, in order to accurately determine the development and location of the embryo, it is necessary to further check the blood HCG and ultrasound.