How long after test

Stephanie β€’ πŸ’•πŸ‘°πŸ»πŸ€΅πŸ»πŸ’ 01.05.18 πŸ• 11.28.19 πŸ€°πŸ»πŸ‘ΆπŸ» Due 01.22.20

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.