Early pregnancy test paper does not deepen for 3 days in a row when there may be ectopic pregnancy, biochemical pregnancy or embryonic dysplasia and other risks, is a certain degree of danger. Early pregnancy can be confirmed by early pregnancy test paper, when the white display area of the test paper shows a deep and light suggests that it is weakly positive, you can interval 1~2 days for review. When there is no deepening for 3 consecutive days, there may be ectopic pregnancy, biochemical pregnancy and other risks, which is dangerous and needs to be combined with ultrasonography and blood HCG (human chorionic gonadotropin) levels to determine. The possibility of ectopic pregnancy exists when the HCG level is persistently low or the doubling is not obvious at intervals of 2 to 3 days. When ultrasonography suggests that a gestational sac, yolk sac, or even a fetal bud is seen outside the uterine cavity, an ectopic pregnancy can be definitively identified. Because of the increased risk of hemorrhage, shock, and even life-threatening conditions, active management is required in accordance with medical advice.