Hi Mbear - I felt like that with number 2, and am feeling it again with number 3. Is our life going to change so much that my girls are going to feel left out. Will having to get up through the night to a new baby turn me into the cranky mother that I so don't want to be? I do know though that it will all be fine. I've got plenty of love to give and I know my girls are going to adore having a little bub to cuddle and play with.
Just think, in a few years time you will look back and wonder what you were worried about. It will all be ok.