Two bars on the pregnancy test indicate a possible pregnancy. However, if the urine test is done at a relatively short period of time, it can only indicate early pregnancy, with the possibility of biochemical pregnancy, early intrauterine pregnancy and ectopic pregnancy, at which time blood can be collected for a blood HCG and progesterone test. If the value increases and doubles every other day, it means that the embryo is developing well. On the contrary, the possibility of biochemical pregnancy and ectopic pregnancy cannot be ruled out, and a pelvic ultrasound should be done at 5-6 weeks of menopause to determine the developmental position of the embryo and whether it is live or not. However, there is another situation, such as the test paper is out of date, damp, or incorrect test method, there is a possibility of false positive, that is, even if there are two red bars, it is not certain that it is early pregnancy, but also to do blood test, the value of the increase indicates pregnancy.