I have a 2yr old that is I guess you can say a daddy's and mama's girl and now a new baby on the way!?

I have four kids 7,6,3 and 2 and I have a new one do any day now. I never had this problem the 2yr old is a daddy and mama's girl and I dont think she is going to like the new baby very much she wants to be under us all the time and it seems like she knows the baby is coming cause all she dose now is cry and she has been walkin around talking about I'm a baby I want a ba ba. I need help what can we do??