According to FF i am due on next week, however, i have not been having regular periods for about 18 months now.

We on 5th May, first time in ages, as hubby has health problems.

Yesturday i felt really tired, and could have won gold if wind was an olympic sport!! and was wanting icecream, the lollypop just did not do the trick
Today i feel totally exhausted, although i have not done much at all, i an drinking a lot, but that may be due to weather. I have felt cold all day (dispite the weather being hot and sunny) and still want icecream.

An i just feeling under the weather, or should i be concerned?

i have been charting temps of FF, please have a look.

would a test show up this early?

I would think that it is probably too early............based on the last time you BD'd, but I don't know much about charting, etc. I only tested when I was late (which is a problem when you have irregular periods unfortunately.) To me it sounds like you may have caught a bug (sorry I know that's not what you want to hear). Good luck though, I hope I'm wrong