Is it rude to look at who sent you gifts before the shower?

Jessica
We're having two baby showers in our home towns but far from where we live now, so I've done an Amazon registry and I expect a lot of stuff will be shipped to us. Just sent it to my MIL yesterday and I'm floored by how quickly people are buying things. Is it rude to look at what's been bought already or who's bought what when the showers are still a few weeks away?