Generally, a 30-day pregnancy test with a pregnancy test stick is relatively accurate. However, for further confirmation, it is recommended to go to the hospital for further tests such as blood HCG. Pregnancy test is to detect HCG in urine, so choosing undiluted morning urine for the test is the most accurate. Generally, the pregnancy test stick can be used 7~10 days after coitus, the longer the time after coitus, the more accurate it is, and if the measurement method is appropriate, the pregnancy test stick is usually more accurate at this time. However, in the case of ectopic pregnancy, the HCG level is low, which is not easy to be detected by the pregnancy test stick, and it is easy to get a false-negative result, so you have to go to the hospital for further examination. When you are 30 days pregnant, it is recommended to go to the hospital to have your blood HCG level checked, which is the most accurate.