need help!

Stacie
Okay so last night at around 10.30 my hubby came back from work. He had bought me the double pack of clear blue digital. 
I did one and it came up pregnant 1-2 weeks. 
I wa say bit shocked TBH. I am due on tomorrow 26th. 
So for the fun of it I know I shouldn't of done but about 12.30 am I did the other one just to prove to myself sort of thing. It came back Not pregnant. So I was convinced I had done it way too soon after the first one and thought nothing of it. 
My hubby bought me another digital this morning ready for when I woke up. I did this one with fmu and it came back not pregnant again :/ 
So now I am totally confused. 
Can anyone advise? Xxx