Hi qhi,
there is a thread somewhere else here called something like "the 10 things you least want to hear", listing a lot of the more hurtful things that TTC people have had to deal with. I think the one things all those hurtful comments have in common is that they ASSUME something about the listener - either about how they think or feel or where they are in the concenption process.

I guess the most sensitive thing to do is ASK your friend how much she wants to hear/share/talk bout/know.

My mother is swinging wildly between ringing me up and bellowing at me to be more positive (her form of tough love!) and simply avoiding me. I would love for her to just ask whether I want to talk about TTC or not on any given day. (In fact, given the mood swings, from hour to hour or moment to moment!) With the whole rollercoaster going on there are days that are euphoric and others that are dismal.
Slow Coach