So, this is the post that's going to make you all realise what a total fruitcake I am (if you hadn't already).
For the first time since we started this whole business, this month I have no two week wait. I know for absolute certain that I can't have conceived this month. There are two reasons for this certainty. One is that at the time I was ovulating, we were staying at my SIL's house, sleeping on the floor on a peculiar arrangement involving a cot mattress and the cushions from a sun lounger, with seven other people and two dogs in the house, I had a bad back, and there was no way we were getting any action.
The second reason is that DH suffers from delayed ejaculation, and even at the best of times there is a fairly mechanical extra step we have to take in order to get his crippled swimmers anywhere near my rotten eggs - and we haven't taken that extra step at any time during this cycle.
After I got the BFN (twice) on the last IVF, I stopped taking the Cyclogest and my period showed up as normal. Approximately 10 days later, I experienced all the usual symptoms of ovulation (though I still haven't gone back to charting, so don't know what my BBT has been up to).
So only an absolute fruitcake would keep catching herself noticing symptoms and wondering if they meant anything...