NEW : However , it could be as long as 10 days before the baby 's name is announced . The queen does n't mind if the baby 's a boy or a girl -- she just wants it to arrive soon . A royal source says Alexandra , the Duchess of Cambridge , is overdue . She is expected to give birth at the private surgical wing of St Mary 's Hospital . Bookies ' favorite baby names include Alexandra , Elizabeth , Charlotte , Elizabeth and James .
NEW : The queen does n't mind if the baby 's a boy or a girl -- she just wants it to arrive soon . A royal source says Alexandra , the Duchess of Cambridge , is overdue . She is expected to give birth at the private surgical wing of St Mary 's Hospital . Bookies ' favorite baby names include Alexandra , Elizabeth , Charlotte , Elizabeth and James .