I am not sure if what I have been experiencing is Implantation cramps or not. Ive been getting cramps this past week. (I am due for my AF on Friday the 25th, on normal 28 day cycle.). But no period w the cramps. I have also been quite gassy, and feel like I have to poop (a lot). I have been quite exhausted lately and have not been feeling like myself. At night I get quite nauseated, but do not vomit.?

You are due for AF in 3 days now. You are just going to have to wait and see what happens.