Kwick do I remember rightly that you speak French (or have I made that up)? I'm re-reading the whole Harry Potter series but in French. Highly recommend it as it helps already knowing the story a bit and it's a good excuse to read the series again.
I am indeed in Copenhagen. I arrived just before sunset and I have never in my life seen such a beautiful sky! The range of colours between blue and red just seemed to be on a whole other level to anything I've ever seen in the UK. Luton airport was absolute chaos today - I've never seen it so busy, and I had not one but two toddlers sitting in the row behind screaming and kicking for most of the flight - that should have served as a very effective contraceptive, but it'll take more than that to put me off 
I'm looking forward to a full night's sleep after getting less than 3 hours last night between finishing working at 2:30am, then getting a positive OPK, booking flights etc. and then trying to get a full day's work done before leaving for the airport at 3:30pm.
Thanks for everyone's good wishes. I'm using the same donor as I did in March when I got pregnant. I decided that he and I must be compatible for that pregnancy to get as far as it did, so I'm giving him another go.
Late well done for making it to 10dpo before testing! 10dpo is still very early. The earliest I've had a definitely visible (if very faint) positive is 12dpo so there's definitely time yet.
Fingers crossed for you and for Lovely
Kwick I would think it's pretty pointless for you to talk to your neighbours about it. They're very unlikely to change their habits if they haven't already considered that their smoke will be drifting into other flats. Is your block managed by an agency or is it a local authority block?