K ladies I need some help

I took a test on Saturday fmu. I'll post pic. Its the first one. Took digital that day said no. Not fmu obviously. Took another dollar store at work yesturday but had just peed. My co-worker bought it for me and wanted me to test quick! Lol. Bfn. Got home last night took another test. Second pic. I took the picture within 10 mins. The first pic the line showed up when I looked at the test an hour later. Could I be pregnant? The tests where 48hrs apart. Wouldn't it be more dark if I really was? Af due 6 days from today. Any advice greatly appreciated. I will be buying frer today.