Is this pregnancy CM?

Andrea

I’m currently 5DPO

This is my cm currently. No odor

3-4 DPO I had very aggressive cramps on my left side around ovary. Also “lightning crotch” this never has happened before on these cycle days.

I also got what I think is a positive OPK so I can’t tel.

Insights?

Is that implantation, or fertilized egg

?