OK..............I am taking a very tentative step back into mumsnet, as I have been away for a few months.
I am currently on CD35 my last 2 cycles which seem true as they have settled to this were 35 and 36 days. I check my cervix although haven't been doing so for a whiile, however throught what the hell, and I would normally have pink cm around 2-3 days before my af starts. I normally kid myself that its not there but its a true sign she is on her way. Today nothing!!
I also have period style pains at the bottom of my tummy and have felt sick today, however my son had a bit of a bug on thursday,(although only sick once) so wondering if its that???
My tummy feels bloated and I have alot of GAS! sorry tmi :)
Tested on tuesday which would only have been approx 10 dpo and not fmu and was BFN
We haven/t really been trying over the last couple of months, and I started slimming world to lose some weight as GP said this could be causing the problem as have been TTC #3 for 12 months, other 2 took only 6 months after coming of the pill. I have lost 10lb in 4 weeks 
So what do you think?? Pg symptom or Sickness bug I am not going to test until next week as only have 1 test left and not going to be silly.
TIA