Mild cramping after fertile week?

A
My fertile week ended 5 days days ago and ever since then I've been experiencing very light and mild cramping in my uterus everyday. This is unusual for me, I've never had mild cramping after my fertile week.  I also have been having very vivid dreams which I normally don't have. Today makes 5dpo. Hoping this is my lucky month. Anyone have any ideas or know if this is implantation? I know it's kinda soon but I can't help but get impatient and curious.