At POPSUGAR, we are anxiously awaiting the arrival of Prince William and Kate Middleton's royal bundle of joy. So much so that we're placing bets on when the tiny heir will arrive. You and your friends can play along too with our printable chart. Just decide whether you think the royal baby will be a girl or boy, and then add your name to a time slot. Do you think Kate will have a middle-of-the-night labor or hold off for a primetime birth? Make your best guess. Good luck, fellow royal watchers!