Me again!! I think it's a chemical...

Top one was taken last night after holding urine for 4-5 hours. The bottom was taken at 7am this morning. I did use the bathroom at 5am, so not quite FMU. The top one is definitely positive, sometimes I think I see a shadow on the bottom? I've also had a short bleed this morning- I had a 5 day bleed, which I thought was AF, during my first pregnancy. I didn't test until I was 5 weeks so it was very dark when I did. I hate this faint line stuff!! I know I need to test in a few days. Just losing hope :'(