Implantation cramps

I am 6 dpo and have been feeling a dull achey, crampy, stinging sensation in my pelvic area. It has been coming and going in waves and it is very faint but it is there. It is mostly on the right side (side I believe I ovulated from) but is sometimes widespread. Has anyone ever experience anything similar? Could it be implantation or would that be a more intense/obvious type of pain? Thanks!!