Ah don't worry about that! A Pokemon Egg is one of the hardiest things in the world. They're way more durable than you'd expect, and Togepi's egg went through a lot of adventures in Misty's bag -- jumping from tall cliffs, falling into water, being passed between people, it's fine!

I mean, I wouldn't recommend doing those things but when you, and I mean you in a general sense, live a life of adventure on the road, these sort of things happen.