I have no idea but it is gross! Its only happend 2x once in the evening on Saturday and yesterday evening! So Wierd!! yesterday I began having mildind cramping and streching in my lower abdomen so who know!
Could it have been ovulation bleeding? You said that monster AF ended 2 to 2 1/2 weeks ago....so that puts you right around time for ovulation. Perhaps not having a normal period for two months meant you didn't ovulate those months and now for whatever reason you had ovulation bleeding
sorry I cant answer this for you. I never had implantation bleeding with any of my kids (that I noticed). But you know that my fingers are crossed for you!!!