We have had the same problem int he past.

First there were the comments "oh you know the sex of the baby, thats sad, didn't you want a suprise?" to which I always reply ... it was a surprise we just got it early

Then the names comments - man, you're dammed if you do and your damned if you don't.

I let DD name slip a few times to my bestie and Mum and I didn't talk at all through my pregnancy with her so there weren't the same dramas as we had with DDD.

We named DD what we orginally were going to call DDD (departed darling daughter). When we originally told my Mum that name she screwed her nose up and said "nah you're not really going to call her that, that's a horses name" ... she denies it of course but I was so gutted by her comment I have never forgot it. So because we went with a different name for DDD, we decided DD was always going to have her chosen name.

To avoid the few comments we did get I always said we couldn't decide on two names that were way off the mark anyway. I love false names ... that way if the offenders said "oh I don't like that name" it didn't matter because it was never going to be it

ALSO its harder to say "I don't like that name" when they are looking upon the said baby in all their cuteness

So in all my waffling I would suggest a few false names just to "appease" people ...no you shouldn't have to do that BUT it WILL shut them up