Sometimes you can laugh these comments off can't you, but sometimes it can really get to you - especially if you really want to be pregnant - so flippant comments can really hurt.
I got married in May 2007 and we started TTC in September 2007 (when I had just turned 30). This woman at my work kept asking me (like all the time), if I was going to try and get pregnant, if I was pregnant and kept pointing out that I 'shouldn't leave it too late as I was over 30!' I kept biting my tongue - but it really hurt. What made it worse was that I had an early miscarriage in November 2007 - so whilst she was saying this stuff, in my head I was saying, 'well yes, I do want to be pregnant' and was crying inside. I think people say these things but don't know the full story and can really end up being insensitive without realising it. Luckily, I got pregnant again in January 2008 and had my lovely wee boy in the October.
On the other hand, I think we all do it to a certain extent - i.e. when a friend gets married and we have to stop ourselves wondering if they are developing a 'bump' or if they have just put on weight. One of my friends has just got married and I have told myself that I will definately not make hints or comments to her just incase, as I know how annoying it can be and how it can hurt if something goes wrong.
Sorry, I hope I haven't turned your thread into a moany one!
xxx