Thanks for the good wishes everyone. I also can't believe I am 20 weeks already - where does the time go?! It is a little girl, I am very excited. And SIL had her baby today and they HAVE gone for the bonkers foreign name. PILs will be all of a twitter over it! 
Flute is very exciting Cag, that is an absolute bargain.
Balloons and birthday pile look great Girlie
Seminar sounds really interesting Cath. It's a subject close to my heart too, having also been a scientist. I was the only girl in my year at school to take a-level physics. Uncharacteristically at the time (I wasn't very assertive at that age!) I put in a complaint about my male physics teacher, who used to make a big deal of getting me to write on the board for every lesson /group experiment and never let me actually do the experiment. Like I was some sort of decorative game show hostess I wasn't even very decorative . And he used to tell the rest of the class not to be beaten by 'the girl'. I went to the deputy head about it because it made me really uncomfortable and it stopped, but he never apologised. I went on to get the only A grade in the year - ha!
Spends today were £3 parking at SN playgroup and about £40 on some second hand girls' clothes - a friend gave me first refusal and I picked up some nice bits for £2 each, v reasonable. I will dress baby DD in some of DS's old stuff anyway (some was unisex anyway and some was just lovely and perfectly fine for a girl - including some science t-shirts
) . But it was nice to have some summery dresses, especially as the seasons don't quite match up with DS's stash.
Off out for dinner tonight, just waiting for DH to get home from work so I can head into town. It is VERY cold down here in London at the mo and there was even snow /ice in the air earlier, though not enough to settle. I will hint to DH that it would be nice to find a hot water bottle in my bed when I get home 