Help!! Going nuts here!!

Ok, so I'm driving myself crazy!!  I'm 4 days late, still no BFP, but no signs that she's coming!  I felt like what could be implantation cramps about a week ago, but no ++ yet.  I never get cramps early, so I thought that was a good sign.  I've also been starvin' Marvin the last week and a half....bloated and I keep getting headaches.  I don't know my exact LP so it could be 14 days, but I believe I ovulated around the 17th.   Is my chart off?  It's only the end of my 2nd cycle, so I haven't gotten a feel for all this yet.  This is going to  be the death of me!!!!  I just want AF to show already or to get a BFP already!!!!!