Ttc for a year now

Leanne

And I had an urge to do a test the other day. I used to do loads but stopped and not done one for ages but other day I did one and there was a faint line done a few more since and always a faint line. My partner thinks cause there cheap there dodgy and wrong. Ive took a bit dearer one and nothing no line. Any advice on cheap test I'll attach a pic off the tests I use