Please help! Implantation bleeding? 6 days flashing smiley on OPK

Emily • Been trying for a little miracle since May. Happily married since May 23.
Ok, this question may be similar to others but I am really hoping for some help! Been ttc-ing for 9 months. I am cycle day 21 and periods are usually like clock work. I have had a flashing smiley on my OPK from ClearBlue for 5-6 days now, and I have never experienced this with them before. I have used them for almost a year now with none of this constant high fertility. I don't know if I ever truly reached Peak, because this ovulation has been off. Now, starting Saturday, super light, I had spotting just when wiping. Now it's a tiny bit heavier, light pink, and still only when I wipe. My periods are NEVER like this and it isn't due until the 2nd of March. I have 29 day cycles. Also, no cramping at all. Which is strange if it's my period. I've never had a period with no cramping. Help!? Anyone out there? Is my body just crazy???