Congrats Amber, I know you'll love your new machine!
I got mine last Friday and I had a ton of updates to run as well. I ran them all and my system is still running great, no problems from any of the updates.
So you *should* be fine. I give that disclaimer because of the .01% chance that something may happen, but im 99.9% confident that you'll be fine.
Good luck, and enjoy your new macbook pro!