Yep, it IS worse to have people knowing you're trying and asking how it's going - it's not very nice to know that eyes are on your belly all the time and knowing people are thinking you're hiding something when all you've done is put on a bit of weight!
Sim, your comment is a bit insensitive. It's nothing to do with shame about 'trying' and a lot to do with it being none of anyone else's business as well as taking the pressure off yourself by having everyone expecting news that you want more than they ever will.