is this normal

my husband and I are trying to have our rainbow babu :) however I have mixed feelings... when I do become pregnant I don't want to tell anyone... I lost my last child at 23 weeks and people were buying us gifts all ready so I got stuck with clothes and a crib :( we never got a chance to take any of her stuff off the hangers or boxes... I just don't know if I will want to tell people that I am pregnant and I know I will love the baby with every fiber in my body but I don't know how I will be during the pregnancy. I feel that I want to be excited but I don't want to get too attached just in case things go bad again... I don't know if I can go through that pain again :( I guess what I'm asking is anyone with a rainbow baby how long did you wait to tell people that you were pregnant and how were you during the pregnancy