What does it mean to have a dark and light pregnancy test 12 days after ovulation?

12 days after ovulation, the early pregnancy test paper one deep and one light, indicating that there is a possibility of pregnancy, that is to say, the level of human chorionic gonadotropin in the urine is relatively low, may be due to a short period of time of pregnancy, false positives, improper operation methods and other reasons.
1. Short pregnancy time: after the embryo is formed after the combination of sperm and egg, the trophoblast cells will secrete human chorionic gonadotropin, but when the pregnancy time is relatively short, the human chorionic gonadotropin level in the body will be relatively low, and the phenomenon of one deep and one light will appear when using the early pregnancy test.
2. False-positive: in the use of pregnancy test paper before the test, if you eat too many drugs containing hormones, may also lead to false-positive, manifested in the phenomenon of early pregnancy test paper with a deep and light, this time whether the pregnancy needs further examination.
3. Improper operation method: before using the early pregnancy test, if you drink too much water, urine is diluted or not in accordance with the correct method of operation, early pregnancy test paper expired, etc., may also have an impact on the results of the examination, caused by the early pregnancy test paper a deep and shallow.
12 days after ovulation morning pregnancy test paper a deep and shallow, it is recommended that every other day to review or go to the hospital blood test human chorionic gonadotropin, to determine whether the pregnancy.