Early pregnancy test paper for a few days in a row weak yang, is pregnant

Early pregnancy test paper for a few days in a row weak yang pregnancy may be caused by a shorter pregnancy time leading to detection results are not obvious, should be admitted to the hospital for blood hcg examination, which belongs to the earliest and most accurate method of detecting pregnancy. Suggestions: early pregnancy should be supplemented with folic acid to prevent intrauterine fetal neural tube development abnormalities.