So I'm 3 days before expected AF, for the last 3 days my BBs have hurt incredibly bad( which they usually do for a couple days starting about a week before AF) but never this strong or close to AF. I was thinking my chances were good except since yesterday I've. Been cramping pretty badly. Like I think AF is coming early badly, but I never cramp like this without AF actually starting soon after the cramps start. I guess what I'm wondering is if anyone cramped pretty bad s few days out and ended up with BFP? Fingers crossed ( I tested yesterday not FMU and got BFN. Did anyone implant later and BFP only on or after expected AF day?