I have bloat-belly too. I'm just waiting for the questions/comments to start. I have to wear shirts for work and it looks pretty bad... Lol!
Still have next-to-zero symptoms... Except I've been up since 6am, and I have work until 1am tonight, so, I have a feeling the tiredness may well kick in pretty hardcore later
Crawkey... I'm 99.99999% sure that you should not be working anything longer than a 12 hour shift.
Have you had any sort of risk assessment completed for work yet? I'd very much bring that up if you haven't already. If nothing else: pregnancy causes extra-tiredness, which could lead to your judgement being impaired, and you making silly mistakes at best, and hurting yourself at worst. (Not trying to scare you so much as giving you the sentence to scare them, if that makes sense). You should check your company's working time regulations... It should probably state in there that you shouldn't be working over 13 hours in any one day, and you should have a minimum of 11 hours rest between each shift.
If this is something you've personally agreed to do, it may be worth speaking to the boss about suspending that agreement for the time being.
This is, of course, largely dependent on when you go "public" with your pregnancy.