Two bars on the morning pregnancy test paper, one dark and one light, it indicates a higher probability of pregnancy and a lower probability of false pregnancy. Two bars, one dark and one light, indicate weak positivity, possible reasons: 1. Just pregnant or ectopic pregnancy. Just pregnant, ectopic pregnancy HCG levels are generally low, the test area color band only vaguely appeared, there may be a pregnancy test one deep and one light. Embryonic abnormalities: early pregnancy due to chromosomal abnormalities, poor embryonic growth and development, or with early miscarriage, may also lead to low HCG, will lead to early pregnancy test paper two bar color a dark and light performance. At this time, blood tests for HCG can be given to preserve the fetus, or terminate the pregnancy; After the third month of pregnancy, HCG level will drop and urine test will sometimes show weak positive. Measurement error: Improper testing can also cause the two bars of early pregnancy test paper to be dark and light in color. It is recommended to use the test paper within the shelf life and follow the test method strictly to reduce the occurrence of errors. If menstruation is delayed and the two bars are dark and light, pregnancy should be highly suspected, and it is recommended to go to the hospital to take blood HCG to confirm.