shorty I was told the same thing about avoiding DTD/ use condoms before the scan on the first cycle of any new dosage - and if I were to over-respond then the cycle would be cancelled, and would have to either avoid DTD or use condoms. The irony of being told to use condoms for the first time in 12 years, since we first got together, when we're TTC is quite something!! Sounds the wrong way around doesn't it?!
Rosebud your trip sounds amazing! So glad you're having such a brilliant trip, you totally deserve it. The stuff about Metformin is interesting, as the NICE guidance says that there's no evidence for Metformin increasing the efficacy of Clomid, or as a treatment for ovulation induction by itself, whereas in the US it seems to be prescribed as a first line treatment even amongst skinny cysters. So who knows?!!!
My consultant said it def wouldn't be applicable in my case because as an underweight PCOS woman, it was v unlikely I was insulin resistant (although could well be insulin sensitive hence why he recommended eating low GL to manage blood sugar), and both he and the idiot fertility doctor I saw at the MOT last week both said it would be definitely not recommended for someone of low BMI in case of losing any more weight. That's just my doctors though, and in my own case - yours may well say different. Just sharing my tuppence for what it's worth 
I'm twiddling my thumbs until I see my consultant on Wednesday with my scary fertility MOT results - shitting it as to whether he'll say (as rufus found) that the results are misleading given I came off the pill so recently, and to disregard them, OR if I really have dried up and all my eggs have died off in the last 5 years and my fertility has indeed fallen off a massive cliff as the scan appeared to indicate. I'm an atheist so don't pray, but if I were the praying time, I'd be praying that it's the former and my ovaries aren't on some accelerated ageing process...
CD18 and CBFM still says 'low', and no EWCM yet. Idiot Dr last week said cos my lining was so thin she thought this would be a longer cycle, she guessed about 40 days (which would be short for me, I think, given I waited 9 months for a period last time I came off the pill!). She said I should test OPKs from CD20 onwards, as no way of telling if the dominant follicle we saw on the scan would indeed develop into a mature follicle, and whether I'd actually lay an egg.
I'm not expecting anything, tbh don't know if I have ever ovulated! Only started learning about CM, temping, and peeing on OPKs when starting TTC so no idea whatsoever if I've ever had an ovulatory cycle when not on the pill in my life!