So tomorrow AF is due according to GLOW but I haven't had a period in over a year because had an iud well I got my iud out almost 2 months ago . So not sure exactly when I'm cycle is due , today I'm 13DPO. Well yesterday when I wiped I noticed so reallly light pink blood it wasn't even enough to reach my underwear it was only when I wiped it was mixed with some cm .and I felt a some sharp pain right before it happe in lower pelvis. I don't remember a period starting like this ? And I haven't had anymore spotting since it was just yesterday morning . So I have 3 questions , does This sound like implantation bleeding ? And can implantation bleeding around  when AF is due? And could I get a bfp along with implantation bleeding or does it start way before bfp?