Back in the UK and all the holiday washing is blowing on the line! Bear with me while I catch up....
Thanks Boodle for sharing your thoughts about the fc appointment, particularly the progesterone, I'd not thought to ask that. I've just had a curveball hit me about mine but I'll rant about that in a minute...
frog I'm not the berry to keep anyone grounded, I have too many fanciful ideas of my own! I'd never heard of late O making twins though, is that late as in later than usual in your own cycle? I wouldn't be able to track that as my cycles are all different lengths anyway, and if O was much later I'd have a 2dw rather than a 2ww!! 
haycorn hooray for newbie doctors who want to cover everything!! 
charming - It's a nasty situation you're in there. The trouble is, if you say something to the phase leader/ deputy and they act on it, it's going to be difficult for them to disguise where the information has come from (if they bother trying at all) and that will affect your relationship with the teacher. How is that by the way? Does he take advice from you or see it as interfering? I would definitely try to speak to him first if you can, but also speak to the deputy, just to mention you had a few concerns. I suggest deputy as you mentioned the conversation you had at the beginning of the year, so you could relate it back to this maybe? Good luck whatever you do, it's definitely got to be mentioned. Preparing resources in the middle of a lesson is just ridiculous!! It sounds like all the basics of routine, preparation and organisation are just not there, and it's not going to suddenly improve unless someone puts a rocket up his arse. Makes me
when people don't appear to put the effort in. It's not only the kids that suffer, but the teacher that has his class next year that has to try and fill in all the gaps.
Bunny You've got no control over when you give birth anyway, so sods law would definitely be that you waited a month and then got pg and gave birth a month premature. Just do it!