The HCG blood test is an indicator of early pregnancy. It takes about 2-4 hours for the HCG results to come out, and the test strips and monitoring time vary from hospital to hospital. After the results come out, you can judge whether you are pregnant or not according to the results of the test, within the normal range, it means that there is no conception, if the HCG results are out of the normal range, this time there is indeed a pregnancy. Some hospitals require fasting for the HCG test, so be sure to follow the standards of certain hospitals for the test. HCG tests also require time, as much as possible, 8 days after intercourse before the blood test, so as not to have an invalid test if the test is done too early.