Could this be implantation?

Tmi!!! At CD12 I had egg white cm which was a small amount much less than what I usually get, I took it as more is still coming maybe following day but non, Ive been doing the deeds since CD12when I saw the egg cm CD12 but today CD17 I did not, so late tonight around 10pm I had period like cramps and a pinkish tint when I wiped, it's confusing becoz if the day after egg white cm was 1dpo tha means today should be 5dpo, isn't it too early for implantation as it's said to start at 6dpo? Again ovulation spotting must have taken forever if that's what it is, what do you mommies think?