Ovulation ?? Help 😩

Victoria

So I thought I ovulated on8/9 because my line was dark then on 8/16 (<a href="https://play.google.com/store/apps/details?id=com.glow.android">glow app</a> says I ovulated this day) I did another ovulation strip and was dark as well I took a pregnancy test and it was negative so I figured 8/16 would be my actual ovulation day ..

today 8/24 I did another ovulation strip and it's darker than control line ??? Also took a pregnancy test and it was negative