What does implantation cramps feel like?

I've been cramping on and off since ovulation (5/6) days ago. I had really painful cramps for two days after ovulation, and they've since subsided to a light cramp (more of an uncomfor feeling) here and there, lasting anything from a single cramp to a few minutes.

This morning I felt two very strong, very noticeable tugs/ pulling on my left. I felt it again very lightly a few hours ago and I haven't felt it again.

I have however still felt a cramp here and there.

I know it's early, but I only BDed in the days leading up to my ovulation (not on my ovulation day)