Can someone help and or explain?

Je

Is it me or ...

I took the first one on Saturday morning as you see, 13dpo. I seen a line like that if you really look and I seen it within time frame. Then the ones after that I can't really tell. Then I also took a Walmart cheapie. Still within time frame seen the same. I don't understand. I don't wanna buy a digital and waste money if it didn't work this month. Been trying for over two years. Advice anyone???