These tests are defective.
I am pregnant for the 5th time and got a Clear Blue test from my co-worker (digital) that didn't work. Nothing came up on the screen. I assumed it was faulty, so I went to Walgreens yesterday and happened to buy another 2-pack of the tests. $21 for a stinking set of pregnancy tests when I only needed one for confirmation (I had already taken a First Response several days ago, but wanted to confirm). Took a Clearblue test. And AGAIN - NOTHING showed up. Seriously out $21 for pregnancy tests. Absolutely ridiculous. I bought a Target brand test and confirmed with no issues. I will NOT be recommending these tests to anyone. Can I get reimbursed for your crappy product?