On the day that AF was due, I had crampy symptoms and keep running to the bathroom to check on AF. It never came so I tested that night or the next day and I was pg. This was my first pg which turned into DD and way before any of my IF crap.
I so hope that this is your cycle SMRC. I admire your strength to not test. I always caved in and tested.
Good luck and keep us posted.
FB