Haha, yeah you're fine. I still wouldn't go out of my way to drop them or anything but...people have tried to eat them before and couldn't even manage that. So I don't think it's possible to break them until the baby Pokémon itself is ready to break it.
As for how long, that depends on the species in question. Some can hatch in under a week, others can take as long as three.
video;
Date: 2013-05-01 04:22 pm (UTC)As for how long, that depends on the species in question. Some can hatch in under a week, others can take as long as three.