I think I purchased a bad batch of First Response

Haylee

Okay, so I have taken a lot of pregnancy tests in my lifetime. Especially within the last 6 months. I have never noticed before, but I got a negative on first response when I got a positive on 88 cent walmart test. I noticed my first response was rattling a lot! I don't recall any other ones I have bought previously rattling like this? I purchased them at walgreens and it was a 2 pack. Could these be defective?