How long after test

Stephanie • 💕👰🏻🤵🏻💍 01.05.18 🐕 11.28.19 👶🏻 12.23.19 🐕 06.18.20 🤍 TTC #2

Hey! How long after you test a pregnancy test does the test become void? I took a test at around 5 which looked negative and then around 7 I glanced at it again and maybe see a VVVVVFL?? I know I can just retest in a day or so but figured to ask.