Excited Anticipation Overkill?

Lately I'm having trouble finding the balance of excited anticipation of our little one's arrival and worrying that I'm talking/thinking about a baby too much.  Is that something normal that even pregnant moms-to-be worry about? 

I don't want to be that person who has a one track mind.  In fact, honestly, I think even my husband can get tired of the baby talk, too. 

Sometimes I'm afraid if I don't get myself excited about it, I'll get depressed.  If I get too excited, it's all I think and talk about.  If I lay off and then slowly get depressed about it...well, that just sucks then.

I am really trying to focus on other things lately.  And guess what?  When I do, I suddenly have a little more patience during the wait, too.  Well, for this week  today, anyway.