Is it possible to be infected by chicken pox more than once?

I was wondering if it is possible to catch chicken pox twice? My daughter has been exposed to chicken pox in school and I think that she is starting to get a rash. What worries me is that I am 27 weeks pregnant, I had the chicken pox when I was 2. so that was a long time ago, is my body still immune after all this time? Could I be infected again? The only thing I have seen in my daughter are 5 or 6 red dots on her stomach, but no fever or weakness. So can't really tell.
What do you all think should I be concerned for myself and my pregnancy or am I still immune??
Thanks for your time!!

[martikadragoon]

Yep, it's possible. My younger brother got it 2x, once mildly and the 2nd time was a fairly serious case.

Your body would be infected only if you didn't build a high enough immune response the first time but given that it's been so long since your first infection your most likely alright.  I wouldn't worry about it at this point.