Calico and THOM - congrats on your scans and congrats on another little boy THOM. He will absolutely adore and idolise his big brother and, as the sonographer said to me, you will be the queen of your house for ever more and the most loved mummy ever...
Herbgarden - Artex is a real bugger to get rid of. DH's mum had it in her house and it took her days to chip it off and then she got a plasterer (fortunately her brother) in to redo the plaster - took him a couple of days (ceiling too low to plasterboard and skim). If you have high ceilings, get a plasterer in to skim over it - much less hassle in the long run!
Re Braxton hicks - have been getting them from around 14 weeks. Not painful though - just tightening and loosenings. Dont think Squiglet is a huge fan of them though - he always gives me a massive kicking after them. If they're really uncomfortable MamaGoose try drinking more water (dehydration can apparently make them more pronounced) or having a bath if they're in the evenings - may slacken them off a bit. Hope your braxton hicks were ok and nothing to worry about TBM.
Huge sympathies to the bad back brigade (there seem to be an awful lot of bad backs on this thread) - make sure you dont overdo things (that includes you routemarcher Markstretch!). Markstretch - take it easy if you're getting dizzy/pounding heart (may be your body's way of saying you are overdoing things). I get heart poundings too occasionally (we're creating LOTS of extra blood in pregnancy and heart is working overtime) - generally when I've been overdoing things.
Thanks to everyone for the preschool picking advice. We have a wonderful nanny who looks after DS (has looked after him since 6 months old) who we picked on the same lines (how she was with him rather than us) so more than happy to apply that instinct again when it comes to pre-school selection.