Implantation maybe?

Serena • Soon to be first time mom. Trying for our little "Caramel Macchiato" Harris. TTC#1
I'm about 4-5DPO and I'm experiencing cramps and I never get cramps until AF arrives. Since AF so far away (on a 29 day cycle) could it be the start of implantation? At first it was a dull feeling now it's cramps mainly on right side. This TWW is going to drive me insane