I don’t get it🤷‍♀️😕

Baby

I took one digital ovulation test in the morning and showed a peak solid smiley. But when I took the strip out it was smidged like this.

then I took another test with the same FMU and it showed a blank circle- low fertility. When I took the strip out it showed two dark lines.

I’m just confused as to why I’ve been having high fertility flashing smileyes for the past 4 days and all of a sudden it’s blank. Which result should I trust?