Clear blue, no control line

[sparklefarts]

So I have done two clear blue tests, both have come up negative, but neither have had the control line?!
What am I doing wrong? The second one I did get some urine on the window, could that have caused the no control line

For info, I'm 8 days late. Have had a stressful month however, so am hoping thats the cause, but now I'm stressing I could be pregnant?
I've never had tests with no control line before

Wanted to get an explanation?..

Looks like a standard negative to me. I cannot see a cross in the text window so that means negative