CD26 Increased CF and Implantation Bleeding/spotting?

So this has been a crazy cycle full of symptoms and negative pregnancy tests. First cycle after Mirena IUD removal. My cycles usually lasted between 26-29 days before Mirena. I've had tingling breasts, nothing that I want to eat sounds good and this girl loves to eat. Cramping, cramping, and more cramping for the past week and 1/2 to 2 weeks not to mention the new lower pelvic pressure the past couple of days. CF was fairly dry after expected Ovulation/fertile window and then this morning there it was a glob of it on my tp. Next time I go pee and there the cf has brown color spotting mixed in. So the question is anyone get implantation bleeding so close to what should/would be expected period and an increased amount of CF? Oh... I took a pregnancy test on cd 22 and it was negative and again yesterday cd25 again BFN.