So here are two different results from the inside of a clearblue digital.

Now i know you’re not supposed to take them apart, but top 2 strips are yesterday’s results which the test showed as me being ‘pregnant 1-2’ , however when I took another digital this afternoon, the test showed ‘not pregnant’ and they are the bottom strips.

I’m so confused because both look exactly the same so how did I get one positive result and one negative??