My last digital clear blue test was invalid. I was just on the phone customer service for awhile. I followed those instructions to a T! And literally nothing showed up on the screen. Not even te loading sign. Just completely blank.  😑😑😑😑. They are just sending me a new one but I mean COME ON. I just want to know already! It would've probably been to early for a digital to pick anything up anyway, but I just get so impatient.   Anyway that's my testing struggle for the day!