As it turns out, we're ordering from US anyways. As orjanb said; Sweden is one of the countries the US store delivers to so there can't be a problem. When I log on to my UK-account and surf the Kindle books it let's me know it can't be delivered to me. No such problem with mu US-account.
I have two accounts; each regestered to different e-mails. So far no problems

We'll see when the Kindle arrives, haha.
Thank you for all your help!