Is the pregnancy test result accurate?

Patient's question:

No

Doctor's answer:

Use morning urine to test. If it comes out negative, it's recommended to go to the hospital for a check-up. Her period was a week late and the pregnancy test showed negative. In the second week, she went to the hospital to test her urine, and the doctor said she was pregnant because her uterus was too small, so the pregnancy test didn't detect it.