I'm only 7+4, so haven't told many people, but have had some really crappy comments from medical folk so far. I'm 37 and it's my first. When I rang my GP's surgery to tell them I'd got a BFP, they put me through to a random Doc - who said, 'So the IVF worked, did it?' When I told him that I've had no fertility treatment, as my notes show, he said, 'Oooooh, doing it naturally at your age - well done!' (had to stop myself telling him to fuck off!).
Then, I've just had to register at a new surgery nearer home. They require all new patients to register with a nurse first. When she was asking me my basic info and I told her I'm pg, she said, 'IVF, was it?'. When I told her it wasn't, she said, 'but you're very old to be having a child - are you sure?'. To which I replied that I think I'd remember going through IVF, seeing as it's lengthy, painful, stressful and often traumatic. She then gave me a 
look - I still think she doesn't believe me! THEN, when she kept calling me Mrs and I pointed out that I'm a Ms, she asked me why I had got pregnant without being married and actually tutted and shook her head! I complained at the reception about her afterwards 
I know the Daily Fail and its ilk like to scaremonger that women automatically become infertile after 35, but you'd think medical professionals would know better! If I'd had IVF, I'd be totally proud and upfront, but it seems odd that everyone just presumes we've had fertility treatment solely because of my age. I bet I'll be having twins now - then EVERYONE will think that! 