6dpo and cramps.

Erien • Just married on March2014. Expecting a baby on Jan2015 :)
Im having a light cramps on and off this morning. I'm 6 DPO and cycle 21. Its a week away from my AF due. Is it possible this cramps for implantation?  I know its too early but I hope this month i can get a good news. Finger crossed for BFP. And baby dust to all of you (: