Pregnancy Tests Shadow

I bought these tests from Amazon. They have mixed reviews but I've been testing since Tuesday and get like a shadow line. I'm BF my 10 mo & had my last period in June that lasted 2 weeks. No BFP but faint lines. BD June 23-26 (some day between) July 12 & July 16. Has anyone had False Positives with these. I've been cramping so bad for 2 straight weeks on and off. And feeling extra tired, but that could just be me.

The first picture is from the tests I've taken since Tuesday. & the last ones are from 8:16 pm today (unedited within the 5 min time frame)