???? help needed

Skye
REMEMBER THIS IS JUST A QUESTION (didn't know where to post this so just did it here) 
If you take a test an it's neg then take the test again in the morning with the same test (I know your not ment to just a question) an it  still neg then you pee on it an comes up positive is the reading totally wrong or is there a possibility ? 

Glow Resources

Let’s Glow

Glow is here for you on your path to pregnancy

Glow helps you navigate your fertility journey with smart tools, personalized insights, and guidance from medical experts who understand what matters most.

25+ million

Users

4.8 stars

200k+ app ratings

20+

Medical advisors