Congrats!
As the mom of two, I can tell you it is normal to feel like your mind is scattered. For me it didn't go back to normal right away. I used to teach art at 4 different schools. Each class was on a different project and I knew off the top of my head exactly where all the classes were, all the kids names (hundreds of kids) etc.. For awhile after I had my children, I was lucky to know what day I was on. Good news, it does mostly go back to normal, but I think each gal is different on how long that takes.
Sorry about the queasiness. That should go away after awhile. Maybe that will help you focus better.
Plus side, you can forget stuff and use it as an excuse. "Oh, ever since I got pregnant (or had kids) I'm lucky if I remember anything" 