If a woman is pregnant, the concentration of chorionic gonadotropin in the blood and urine will rise rapidly. If the early pregnancy test is done for 3 days in a row and both lines are indicated, this situation indicates pregnancy. The use of early pregnancy test strips after pregnancy is still more accurate in detecting pregnancy, and the probability of pregnancy is higher if the test is positive for several times. For those who are positive, it is recommended to go to the hospital to have a blood test for HCG, and if the menopause has been over 40 days, an ultrasound can be done to find out the location of the pregnancy, the size of the gestational sac, and the development of the fetus.