Cramping a week before AF due?

So like I've asked about my symptoms before and I'm going to test once I miss AF if I do, but, I have cramping and I know for a fact (despite my fertile window changing) I am 11 DPO, because this is around the time that implantation occurs, could it be that? I've had cramping for a day or two now but I'm not sure if that's normal, it's just every once in a while and nothing serious I just feel it.