Implantation, irregular period, or ovulation?

My last ‘period’ was 5 days late, about a day and a half, and extremely light. Then I bled, almost like a period but no clots or other period symptoms at all, for about 2 and a half days when I should have ovulated. I took opks the 9th-12th, but never got a strong positive. They have since gone down in darkness.

Could I have ovulated and conceived on the 3rd and had implantation bleeding the 10-12th?? I’m just confused what’s going on here!

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