Implantation spotting? TMI!

This is my first month off BC so I wasn't really expecting to get pregnant right away. I have no idea if I will have regular cycles or not because I had been on BC for 10 years almost. My AF in theory should start in 4 days. The only methods we used were this app telling me when I should be fertile. I did actually take a test this morning and BFN, but I knew it was still a little early. Then I go to the bathroom and see this?? Nothing really there when I wiped though. If AF should be due in 4 days would this still be implantation bleeding? Or is it most likely just AF trying to show (since my body is more than likely thrown off as it is). Thanks for the input.