Its hardly an op at all! They use a scalpel to make a tiny incision then pull it out, it does depend on how well it was inserted though - my first one was put in too deeply and it took nearly an hour to remove it! Sometimes you have to be referred to hospital for minor surgery to remove it apparently.
Hubby and i have never had a problem getting pregnant, its the staying pregnant we struggle with. We managed it with my darling girl though so i have hope for the future too
Perhaps you should ask about the coil? I know they aren't keen on giving it if you haven't had a baby but you never know..you may end up in my situation, charting, withdrawal and condoms every now and then!
Good luck honey