Duke and Dutchess of Cambridge expecting their third child

What is hyperemesis gravidarum

Just one day after Kensington Palace announced Kate Middleton's third pregnancy, Prince William says the royal family could really use some shut-eye.

Britain's Prince William and his wife, Catherine, are expecting their third child together, Kensington Palace announced on Monday.

While on royal business in Manchester, England, Prince Harry was asked by reporters if he has heard of Kate's pregnancy and what his thoughts were.

William, also 35, is second in line to the throne and the new baby will be fifth in line, pushing William's younger brother Harry down the order of succession. William and Kate already are parents to their 4-year-old son, Prince George and 2-year-old daughter, Princess Charlotte.

However, he did admit that "there's not much sleep going on at the moment".

Meanwhile, NHS explains that HG cases were very rare that only one in 100 pregnant women experience it - and one of them happens to be a member of the royal family.

This is huge and exciting news for any celebrity couple, but for Prince William and Kate, it's especially happy.

Hyperemesis gravidarum can cause severe nausea and vomiting and requires supplementary hydration and nutrients. Very, very happy for them'.

Ashton said comparing it to morning sickness is like saying "a hurricane is a little bit of rain".

The announcement comes after the royal couple travelled to Poland in July and Kate dropped a hint she would like to have more children.

Kate is estimated to be about three months along in her pregnancy.

Queen Elizabeth II announced that she was "delighted" to have a sixth great-grandchild-the others being George and Charlotte, Savannah and Isla (born to Peter and Autumn Phillips) and Mia (born to Zara and Mike Tindall).

Catharine, the Duchess of Cambridge is actually less than 12 weeks pregnant, but given that she has been struggling with severe morning sickness regularly, she has been forced to pull out of a recent public appearance.

The Duchess of Cambridge visits The Sunken Garden at Kensington Palace.



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