In Video: Kate's busy schedule while pregnant with third child

The Duchess of Cambridge has been busy with royal duties while pregnant with her third child.

Among the host of royal engagements she took part in were a reception for mental health campaigners, an apprenticeship ceremony and a visit to the Diana Memorial Garden with William and Harry.

However, she was unable to accompany Prince George on his first day of school as she had acute morning sickness.

Kate's baby is expected this month and she is likely to take an extended period off to recover and nurse the latest addition to her family.