A blood test can be performed 10 days after intercourse and can detect if conception is successful. The human body secretes human chorionic gonadotropin after pregnancy, and the accuracy of the blood test is very high, but it is easy to conceive only when you have intercourse during ovulation. If you don’t calculate the exact ovulation period, you may buy ovulation test strips and start testing around 14 days after your period, the chances of conception will increase when the ovulation test strips reach strong positive. If you want to detect whether you are pregnant or not, you can also use a pregnancy test after your period is delayed, which is also very accurate and easy to use. Ultrasound examination should be performed in time after pregnancy is confirmed, otherwise there is a risk of miscarriage or ectopic pregnancy, which is not good for the health of the pregnant woman. It is also necessary to strengthen nutrition during the preparation period, eat more protein-rich food to enhance physical fitness and increase the conception rate.