(01 of11)
Open Image ModalRoyal fans Maria Scott, left Amy Thompson and John Loughrey wait outside the Lindo Wing at St Mary's Hospital in London, Monday, April 20, 2015. Kate, Duchess of Cambridge is expected to give birth to her second child later this month at the Lindo Wing maternity unit.(AP Photo/Alastair Grant) (credit:ASSOCIATED PRESS)
(02 of11)
Open Image ModalA close up of the hat worn by royal fan John Loughrey as he waits outside the Lindo Wing at St Mary's Hospital in London, Monday, April 20, 2015. Kate, Duchess of Cambridge is expected to give birth to her second child later this month at the Lindo Wing. (AP Photo/Alastair Grant) (credit:ASSOCIATED PRESS)
(03 of11)
Open Image ModalRoyal fans Maria Scott and John Loughrey pose for a photograph outside the Lindo Wing at St Mary's Hospital in London, Monday, April 20, 2015. Kate, Duchess of Cambridge is expected to give birth to her second child later this month at the Lindo Wing maternity unit. (AP Photo/Alastair Grant) (credit:ASSOCIATED PRESS)
(04 of11)
Open Image ModalRoyal fans Maria Scott, left Amy Thompson, centre, and John Loughrey talk to a TV news outlet outside the Lindo Wing at St Mary's Hospital in London, Monday, April 20, 2015. Kate, Duchess of Cambridge is expected to give birth to her second child later this month at the Lindo Wing maternity unit.(AP Photo/Alastair Grant) (credit:ASSOCIATED PRESS)
(05 of11)
Open Image ModalRoyal fan John Loughrey poses for photographs outside the Lindo Wing of St Mary's Hospital, London, Friday, April 17, 2015. Britain's Kate the Duchess of Cambridge is expected to give birth to her second child with her husband Prince William at the hospital in the coming weeks. (AP Photo/Matt Dunham) (credit:ASSOCIATED PRESS)
(06 of11)
Open Image ModalPolice carry out a search and check of media equipment outside the Lindo Wing at St Mary's Hospital in London, Monday, April 20, 2015. Kate, Duchess of Cambridge is expected to give birth to her second child later this month at the Lindo Wing. (AP Photo/Alastair Grant) (credit:ASSOCIATED PRESS)
(07 of11)
Open Image ModalA poilce officer checks a cone outside the Lindo Wing at St Mary's Hospital in London, Monday, April 20, 2015. Kate, Duchess of Cambridge is expected to give birth to her second child later this month at the Lindo Wing. (AP Photo/Alastair Grant) (credit:ASSOCIATED PRESS)
(08 of11)
Open Image ModalRoyal fan John Loughrey poses for the media outside the Lindo Wing of St Mary's Hospital, London, Friday, April 17, 2015. Britain's Kate the Duchess of Cambridge is expected to give birth to her second child with her husband Prince William at the hospital in the coming weeks. (AP Photo/Matt Dunham) (credit:ASSOCIATED PRESS)
(09 of11)
Open Image ModalBroadcast engineers lay cables in a media pen setup outside the Lindo Wing of St Mary's Hospital, London, Friday, April 17, 2015. Britain's Kate the Duchess of Cambridge is expected to give birth to her second child with her husband Prince William at the hospital in the coming weeks. (AP Photo/Matt Dunham) (credit:ASSOCIATED PRESS)
(10 of11)
Open Image ModalRoyal fan John Loughrey poses for photographers outside the Lindo Wing of St Mary's Hospital, London, Friday, April 17, 2015. Britain's Kate the Duchess of Cambridge is expected to give birth to her second child with her husband Prince William at the hospital in the coming weeks. (AP Photo/Matt Dunham) (credit:ASSOCIATED PRESS)
(11 of11)
Open Image ModalPolice officers patrol outside the Lindo Wing at St Mary's Hospital in London, Monday, April 20, 2015. Kate, Duchess of Cambridge is expected to give birth to her second child later this month at the Lindo Wing maternity unit. (AP Photo/Alastair Grant) (credit:ASSOCIATED PRESS)