I took an hpt and opk for the hell of it today. I guess maybe just a cheer me up. I am a POASaholic so using these actually did make me feel a little better rofl. How sad.
The HPT had A LOT of little indents all over it. I knew from experience that this would make it look like a line was there when there really isn't.
And yep, sure enough.
Not sure if it's apparent in the photo.