never read a test outside the time frame x
It’s not positive. This happened to us - except I was pregnant, and I tested the next day because I knew I was pregnant, my period was expected in 4 days. My husband did a bunch of research when it happened, and if you leave a test out for too long another line will show a false positive. What he found said you shouldn’t read a negative test after 10 minutes.
If you looked outside of the timeframe it's invalid. Test again tomorrow
Can’t be trusted since it dried and is outside the read window
No
Evaporated line