To BFP ladies- how long did it take to get your BFP?

Amanda
I'm now 6 days late, but am getting BFN. I've never been late! I'm also not having my normal PMS symptoms (usually have sore, heavy BBs, bloated, weepy, etc). I've been slightly crampy on and off and have minor constipation. 
Did any of you have a late BFP? Or is my cycle just completely off this month? 
I haven't changed my diet, no stress, etc. We've been trying for over a year and have stopped "trying" (AKA obsessing), so haven't been temping this month.