I am 2 days late on a usual 31 day cycle. I have been getting slight AF type cramps for last few days, no CM and painful bbs, which is unusual for me (normally only a few hours cramping before AF arrives, and lots of CM). BUT 2 BFNs (cheap tests). No AF and no BFP is driving me crazy! I keep reading about people who don't get BFPs until 1 week late. Anyone else had this problem?