How to read a pregnancy test paper (help those who have used it)

Patient's question:

No

Doctor's answer:

Instructions for using early pregnancy test strips: Insert the end of the test strip with the arrow into the urine. Do not let the urine surface exceed the marked line. Remove the test strip after about 10 seconds and place it flat or keep it in the urine container. The best time to observe the results is after 5 minutes. Generally, using the first morning urine provides the most accurate results.
Result interpretation:
1. Negative: Only the control line appears, indicating no pregnancy.
2. Weak positive: Both the control line and the test line are colored, but the test line is lighter than the control line, indicating a possible pregnancy. Retest with morning urine the next day.
3. Positive: Both the control line and the test line are colored, but the test line is clearly visible, indicating pregnancy.
4. Strong positive: Both the control line and the test line are colored, but the test line is darker than the control line, indicating pregnancy for some time.