I'm really late, (CD38) but BFN :'( really is very frustrating, I keep crying on my poor other half! I certainly don't expect to be pregnant first go or anything but I just want to get onto the next cycle if I'm not pregnant! I also feel rubbish, major PMS for the last 10 days :'(
If you are usually pretty regular, I don't think you are out til AF ... could have ovulated a bit late maybe?