Implantation bleeding?

Kyndra • One daughter and ttc#2

I got my mirena IUD out 16 days ago and had a regular four day period after the removal. My husband and I have been bding every day but one multiple times a day since my period. Today is my actual ovulation day but I've been cramping for two days and today I have a little light pink discharge. My normal flow is super super heavy always been so I don't think it's that. Do you think it could be implantation bleeding or the begining of a period . It's not due for 15 days.

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