If the morning pregnancy test paper appears a deep and light two bars, it means that you may be pregnant. If you are having your period at this time, there are two scenarios: first, the test paper has a false positive, which is related to the use of drugs and changes in hormone levels, such as birth control pills. Secondly, there is a biochemical pregnancy or preeclampsia, for this type of patients, you need to go to the hospital to draw blood to check the chorionic gonadotropin, through the results of the chorionic gonadotropin, you can probably determine whether it is a biochemical pregnancy or preeclampsia. If it is a biochemical pregnancy, no special treatment is needed; if it is a preeclamptic miscarriage, it is necessary to decide whether it is necessary to keep the baby in labor according to the situation of the examination.