Could this be implantation? 😌 Implantation or af coming soon ?

Currently on cycle day 25 , and 5 dpo . Glow predicts af , March 23 . & Its normally on time with glow , except last cycle I was a week and a half late . I just started to have cramps. Tho, I normally don't get cramps until 1-2 days before af . Implantation or af coming soon ?