Confused

Danielle
So I haven't had any signs of pregnancy yet and I'm a little confused because at 3dpo and 4dpo I was experiencing light cramping. I am now 6dpo and no cramping and I am due to start AF in a week and I always experience period cramps a week before it comes. Could this be a good sign? I've been super tired and bloated and having headaches. That's about it.