A pregnancy test with one deep and one light, and a vague pain in the abdomen may be a normal reaction to early pregnancy, or it may be a sign of pre-miscarriage, or it may be a manifestation of ectopic pregnancy. It is recommended to consult a doctor in time and treat under the guidance of the doctor. 1. Early pregnancy: In the early stages of pregnancy, due to low HCG levels, which may cause the pregnancy test paper to appear dark and light, due to the fertilization of the egg may cause mild contractions, the patient may also feel a vague pain in the abdomen. 2. Pre-eclampsia: a woman’s pregnancy test stick appears to be deep and light, and a vague pain in the abdomen, there may be signs of pre-eclampsia, if the embryo is not well developed, the patient may also have a small amount of vaginal bleeding or even inevitable miscarriage. 3. Ectopic pregnancy: Ectopic pregnancy due to the HCG increase is not ideal, may be manifested in the pregnancy test stick a deep and shallow, at the same time there may be hidden pain in the abdomen, vaginal bleeding performance, it is recommended to consult a doctor in a timely manner. If a woman’s pregnancy test is dark and light, and the symptoms of abdominal pain persist, she should consult a doctor to determine the cause of the disease and treat it under the guidance of the doctor.