Endless sadness

I lost my Gemma Rose on 11/9/12.  I went in for a scheduled c-section thinking everything was ok.  I had not felt movement that morning but I was having contractions.  When they hooked me up to the monitor, there were no heart tones.  Ultrasound confirmed no heart beat.  The c-section followed and showed a very twisted umbilical cord.  My husband and I are devastated. I began searching right away for support because this is so difficult for us to understand and accept.  Someone please tell me that I'll be able to smile again someday.  Right now, I'm longing to hold my baby and want to hear her cries.  I have to try to go on for my two other children, but I feel like I'll never be able to be happy again.