I'm with Trish on this one. It bothers the hell out of me. I think that if you're close with someone and they share a name they love and have had their hearts set on (whether they're prg or not - to someone who's been ltttc it could be even more hurtful) I would NEVER use it out of respect of our friendship and their feelings. And so I expect the same in return.
When I was prg with DS we'd picked a girls name which we did not discuss with anyone. SIL was about 12 weeks behind me and one day my MIL and (other) SIL were over and were talking about the name BIL&SIL had picked as they knew they were having a girl - I nearly died becasue it was the same name! I immediately told them that and although I was due first, I would have felt terrible if she'd had her heart set on that name and while we did too, I would have at the very least called her to talk to her about it.
Thankfully, we had a boy and in the end they called their DD something else entirely - Matilda, which I also LOVE so obviously we just have similar taste in names.
