The ways to detect pregnancy are as follows: 1.Blood test for HCG value, at the earliest, you can go to the obstetrics and gynecology department of the hospital to have blood test for the change of human chorionic gonadotropin value, that is, HCG value, if it reaches 1-2mIU/ml, it can be determined as pregnancy, which is the earliest and most accurate way to test pregnancy. 2.Testing with early pregnancy test paper or pregnancy test stick, 2 weeks after ovulation. If two red lines appear, it indicates pregnancy. 3.Ultrasound examination, if the gestational sac can be seen at the earliest on day 38 of abdominal ultrasound, it can be judged as pregnancy, and the fetal bud and fetal heart can be seen at 8 weeks, which can be determined as normal embryo. 4.Self-assessment combined with one’s own symptoms, there will be obvious increase in vaginal discharge, small increase in body temperature, mental and emotional changes, nausea and vomiting in early pregnancy, The symptoms include increased vaginal discharge, a small increase in body temperature, mental and emotional changes, as well as nausea, vomiting and change in taste.