Hello all and welcome to all the newbies!! 
I will take anything sweet that's on offer after my crap week and my crap weekend... 
So, AF didn't arrive. I stressed all week about whether it would be a good thing to be PG after wanting it for so long. Constant cramping and twinges that I never get unless I'm mid AF, plus sensitive and tingly boobs, again something I never get. So I was convinced.
DH went away and I wasn't going to mention all my worries and stresses to him and in the end I did. Amazingly he said "What will be will be. If you're PG it will be lovely and exciting news and if you're not, we'll just keep trying", so that was a relief.
Then on Friday I decided to test as AF still hadn't shown up. Got a test when I was shopping and did it on Friday afternoon. BFN. A little relieved, but a little upset too. But still no AF. Did another one with FMU on Saturday, still BFN. Then Saturday evening AF turned up.
I'm still convinced it was a chemical PG though but glad I didn't test before AF in case it was BFP and then it wasn't. I think that would have been worse. But to be nearly a whole week later (never late) and with the pain/cramps and tender boobs, I can't imagine what else it could have been.
So there we go, onwards and upwards! 
nearly, not late at all. The best Luteal Phase Length (the time between OVing and AF) is 14 days, so you're right on track if it's on day 16. Slightly longer can also be good, it's around 10 days when sometimes it can cause problems as there might not be enough time for the egg to implant before the AF witch sweeps in on her broom and cleans it all away. So you're fine hun.
Hope everyone's Ok.
Right, off to get a very unhealthy toasted cheese sarnie for lunch - yum yum!!
xxx