A pregnancy test with one dark and one light line indicates the existence of pregnancy, but because the number of days of pregnancy is relatively short, there will be one dark and one light line. You can take the test every morning and observe whether the line beyond the contrast line is continuously aggravated. If it is continuously aggravated, it means that the fetus is developing very well, and you can wait until about 42 days from the first day of your period to go to the obstetrics and gynecology department for an ultrasound examination to determine whether the pregnancy is intrauterine or ectopic. It is recommended that if you have abdominal pain and bleeding, you should go to the hospital to have blood tests for progesterone and HCG in a timely manner, so that you can take preventive fetal treatment according to the situation.