There are ways to check for early pregnancy such as taking a blood test, using early pregnancy test strips, and also going to the hospital for an ultrasound test. The method used varies from time to time. The earliest time to determine pregnancy is by blood test, usually about 10 days after intercourse. With early pregnancy test paper, you can usually wait until your period is delayed by one week. It takes about 40 days for the gestational sac to enter the uterine cavity, and pregnancy can be determined by ultrasound. No matter which method is used, it is best to pay attention to rest after determining pregnancy, strengthen diet and nutrition, and eat more vegetables and fruits, which can supplement vitamins to help the baby develop. However, it is best not to stay up late, do not strenuous exercise, early pregnancy fetal development is unstable easy to miscarry, it is best not to have intercourse.