OPK question

Jenna β€’ Boy mom 1/27/2020 πŸ‘ΆπŸ»πŸ’™ Twin Miscarriage 2014 πŸ‘ΌπŸ»πŸ‘ΌπŸ»
I'm confused...the line looked like it was getting darker then today's looked lighter....what's going on 😩