Sore Boobs and Cramping

So AF is due Saturday and I started having really sore boobs about a week ago and they have definitely gotten bigger (went to VS and got sized Saturday and I've gone up a full cup size). The soreness hasn't been as bad the last couple of days but I've been bloated, crampy and cranky. Also had cramping last Saturday. Tested early yesterday and had a BFN but still four days early. Anyone else had similar symptoms and still gotten a BFP? Kind of thinking this isn't my month but BD every day the week before my fertile week and every day except one on my fertile week so was really hoping this would be it. Six months TTC.