Too early to test…

I confirmed when I ovulated using opks… no discharge or temping at that point. I started temping mid cycle so I know that’s not majorly accurate. Yesterday I was cramping in my lower back and front right area, nothing new for my periods, aside from being a bit early And I don’t normally cramp in my front. I normally expect those cramps the day before my period then during, so I was half expecting af to show up a week early this morning! That being said I’m 7 days from my period and have a 28 day cycle.

This morning my temp dropped by .6 though?

Could that be implantation?

I know implantation dips aren’t actually very common but I’m curious on your guys input.