Nausea and traveling :-/

Hey guys! I am almost 7 weeks pregnant and the nausea is getting increasingly worse. I am leaving for a two week trip to Europe on Friday and I'm getting really worried that I'm going to feel sick the whole time I'm there. especially with all the Planes Trains and Automobiles...and walking we'll be doing. Does anyone have any advice for dealing with nausea when traveling or just in general? Thanks!! :)