If a woman has a weakly positive or positive early pregnancy test, she is generally pregnant and will have two bars on the test because of the increase in HCG in the blood and urine after pregnancy. If you are not pregnant but have two bars on the test paper, consider whether the HCG in your body has not yet dropped back to normal due to an incomplete medical abortion or incomplete abortion, which is why you have two bars on the test paper. In the case of pregnancy-related trophoblastic diseases, such as hyperemesis gravidarum and choriocarcinoma, the HCG level in the blood or urine may be increased due to the disease, resulting in a positive or weakly positive test result. In this case, it is necessary to go to the gynecology department to check the blood HCG and progesterone, and to check the ultrasound to confirm the problem.