Has anyone ever had that feeling I will never become pregnant but did?

I don't know in my gut feeling even though I've only been trying for 5 months I can just feel it like its never going to happen. I try to keep positive not stress about it but I would end up getting my period or a negative test. Has anyone ever felt that they would never get pregnant but did? 
Here is my test by the way negative as you can see 😒 (evap) but I'm not sure too scared to test again.