Vvvvvvvfl?

Maybe I just want to see it too bad? This is the 3rd test I have taken  ver the past week. I am on cd 41, I usually have my period between 31 and 35. I've had dull lower back cramping the past couple days... Everything feels different then my usual PMS. I don't know how to tweak the color. Going on 11 months TTC 😩 Any advice if it's not there?