If a woman has a normal menstrual cycle, she can use a pregnancy test 7-10 days after ovulation. When a woman is pregnant, her body will secrete the unique hormone HCG, which is not only found in the blood, but also in the urine, and the early pregnancy test determines whether she is pregnant by detecting the level of HCG in the urine, which usually rises about 7-10 days after ovulation, so the test can be conducted 10 days after ovulation to determine whether she is pregnant or not. If the test result is two bars, it usually indicates that you are pregnant; one bar indicates that you are not pregnant; one light and one dark is a weak positive, which indicates that there is a possibility of pregnancy, and women can take another test after 3 days or go to the hospital for a blood HCG test. However, women should also note that early pregnancy test can only detect pregnancy, can not be clear whether the intrauterine or extrauterine, with the increase of menopause time, patients need to carry out ultrasound examination to clarify whether the intrauterine pregnancy.