6dpo tomorrow ...

I know implantation hasn't likely occurred yet so it's not possible for me to be having symptoms . I had a pos opk Monday morning . But yesterday I had AF cramps , then today weird pinching pains in my left and right side . Followed by AF cramps , my boobs are very sore ... And I feel naseous ? I have a miagraine but I think that's due to lack of sleep !! Idk why I feel like this , other then feeling naseous I feel like AF is fixing to show up !