tmi!!! help!!!

Ok so me and my husband are TTC and have been for 4 cycles now. today is 3 days before my expected period. had some cramping across my back then went to my right side. Then when I went to the bathroom I had super light pink discharge. is there any way this could possibly be implantation? hoping it's not af πŸ˜” Update: now it's a little darker πŸ˜’ still hopeful it is not af