My 8y/o won't talk to me since I told her I was expecting

Help. I don't know what to do. I just informed my family about expecting my 2nd child, my family is being suportive but most of them are less than thrilled... and to top it off my 8 y/o daughter has not spoken to me since. She was so upset she wouldn't even let me tuck her into bed last night. I am an only child as is my mom, so neither one of us have ever been faced with this before. Anybody ou there have any helpful hints? My daughter is my world, I don't know how much longer I can handle her not speaking to me.