January period did not come, the test paper is negative, is it pregnant?

Patient's question:

I really want to know?

Doctor's answer:

Negative: Only the control line appears, indicating no pregnancy.
Weak positive: Both the control line and test line are colored, but the test line is lighter than the control line, indicating a possible pregnancy. Please retest with morning urine the next day.
Positive: Both the control line and test line are clearly colored, indicating pregnancy.
4. Strong positive: Both the control line and test line are colored, but the test line is darker than the control line, indicating pregnancy for some time.