Hellooo. I can report that Brian is alive and well, and visited me at DD's school this morning, making me leave my keys on a bench in the playground. I got all the way home before I realised. Then cue panic because they had disappeared, but all ended well as some kind soul had handed them in at the office.
My 20-week scan was yesterday and was all fine except for a low-lying placenta, so they will look again at 32 weeks. I'm not sure I'll actually get as far as 32 weeks, so will need to ask at my next appointment what happens if it comes out early before they know whether the placenta's in the way or not. We are team greenish-yellow, as there was an umbilical cord stuck between the legs and the lady couldn't be sure, but was erring more towards boy.
Apple -
at your DH blaming DS's insanity on you! I am similar. I blame all DD's bad smells on DH's genes. My farts smell of roses, you understand... Anyway, hope your pain is not so bad again today.
Crotchet - hope the knicker-checking is not getting too obsessive... !
Wombat - 1 more day until you can start buying stuff!!!
Hello angel and welcome - I agree with the others - either big pinches of salt (or alternatively bargepoles) required for CB digis! Congrats.
Orange -
at miniorange being naughty.. slightly envious of your neat bump. I am still at the stage where I just look fat. People I see often are still not noticing (or are too polite to say anything!).
Moo - hooray for a good trace - hope something happens for you before long!
Nix - congrats at your measurements... I think we are also going to struggle for name inspiration, but thankfully DD has lots of ideas (although 90% of them are horrendously unsuitable!)
Velvet - can't really help with most of your qs as my last pg was 8 years ago, and I was still at work until a few hours before she popped out... but yes, whenever I sneeze, I have to hold onto my belly to keep it all in place, else I get a horrid shooting pain somewhere. I'm assuming it's stretching. I have only done yoga once ever (non-pregnant). I couldn't move afterwards for 3 weeks. I had mistakenly turned up for an "advanced" class and was trying to keep up appearances. 
Big wave to MamaP if you're lurking, and I hope you're not having to run around too much.