Hi! I see you haven't posted in a while. How are things?
I had a m/c in February of 08, and conceived again almost 2 cycles later. That pregnancy was a healthy one and John was born the following year (his due date was the one year anniversary of losing our baby).
I just took one day at a time. It was very scary at times, especially as I got closer to the time that I lost the previous child. But I just concentrated on the current pregnancy and spending as much "quality time" with the baby as possible. I didn't want to waste a second in worry or dread. I thought that if I did happen to lose that pregnancy also, that I would've wanted our time together to be as peaceful and happy as possible. So I prayed A LOT! And I just tried to have a good pregnancy.
There are certain songs that make me think of the baby that I lost and every once in a while, even still, I'll listen to them and grieve a little. I also have a box that I keep tucked away. It contains, among other things, a book that my other kids and I were reading at the time and a positive pregnancy test result signed by a doctor - just things that I'm holding onto to acknowledge his little life. He was still part of my life, even if we had each other for only a brief time. I struggled with guilty feelings when I became pregnant again, like I didn't have a "right" to be happy about a new baby so soon (nonsense, I know!). And so acknowledging my lost one's life as its own separate thing really helped me to deal with some of those feelings. The new baby was in no way a "replacement", but another brand-new blessing.
As far as talking to people about it, I totally understand why you would want to wait a while. I HATED having to tell people "thanks, but no thanks" when they congratulated us, because they had heard about the baby, but not about the loss yet. Ugh! On the other hand, I have a really hard time keeping my mouth shut about these kinds of things, and I tend to blab it to everybody right away. Some would probably say that's not too smart, and I can't disagree, I guess. But sometimes "joy" outweighs "smart". :-) Either way, it is a very personal decision and you're the best judge of when's the right time.
Good luck with your pregnancy! I hope you come back to tell us how you are!