I need help/advise...

How can I tell the difference between implantation bleeding and late ovulation bleeding??? This has been driving me CRAZY!! I think I ovulated around 7/8-7/9, but on 7/16 I wiped when I went to the bathroom, and I got a really pale pink on the paper... then a few hours later when I did my stuff again it was brown... I've been looking at a number of articles, and they both sound like the same.... I want so hard to believe it was implantation... but I have this gut feeling it wasn't.... I also had mild cramping and stuff... but that could also be late ovulation... help...