Evap questions 😬

Terre • Married to my high school sweet heart. 8/3/13. ❤️TTC #1 since August.
Hi guys! I took a test on Saturday and could see something and am pretty sure it was a faint positive. 
My question is though, if it was an evap line...by now (Tuesday) should it have disappeard or no the evap line would still be there? 

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