The news of her pregnancy has come as a big shock but I am absolutely delighted for Jess and Andy. Who knows we may have another Olympic champion! It will be a massive change for her but she has told me she is desperate to defend her Olympic title at Rio, so hopefully that will be the case.
Ennis-Hill, 27 and from Sheffield, who married long-time partner Andy Hill in Derbyshire last May, said in a statement released by her management:
I have some very unexpected but exciting news to share - Andy and I are expecting a baby.
We are completely overwhelmed, with excitement and a degree of anxiety that I am sure all first-time parents will relate to.
My plans for 2014 have been completely turned upside down, but having had a couple of weeks to think about things from a career point of view I am 100 per cent set on returning to full-time athletics once our baby is born and go for a second gold medal at the Rio Olympics in 2016 - that challenge really excites me.
But in the short term I will make our baby a priority and enjoy the whole experience as much as possible.
I am sorry I won't be in Glasgow for the Commonwealth Games, but know it will be an amazing occasion. I will be at home awaiting the arrival of a little Ennis-Hill.
The security firm criticised for its handling of the London Olympics will bid to be involved in the Commonwealth Games in Glasgow next year. G4S will apply for one of the two aspects of event provision to be contracted out by Glasgow 2014- safety stewarding and security guarding.
Last year 3,500 military personnel were drafted in by the Government to assist with the security at London 2012 venues two weeks before the opening ceremony after G4S admitted it might not be able to provide enough guards.
Britain's most successful Olympian Sir Chris Hoy told ITV News the Commonwealth Games holds "some of the most memorable moments" in his career as the Glasgow 2014 baton started its trip around the world.
The retired cyclist said he wanted to compete in the 2014 Games in front of his home crowd but "eventually the body gives up".
He added: "For me, some of the most memorable moments in my career came at a Commonwealth Games, my first ever individual gold medal came in 2002 in Manchester and I also won a gold medal in Melbourne in 2006 and these were real highlights of my career."
The Queen has placed her private message to athletes inside the Glasgow 2014 Commonwealth Games baton, which is now set for a 120,000 miles trip around the world.
Standing in the shadow of Buckingham Palace and with the Duke of Edinburgh by her side the Queen sent her baton on its 248-day journey around 70 nations and territories.
It will travel through Asia, Oceania, Africa, North and South America, the Caribbean and Europe - leaving for India tomorrow - before arriving back in Scotland in June next year.
The monarch placed the unique hand-crafted baton made of titanium, wood and granite into the hands of sprint legend Allan Wells, winner of four Commonwealth Golds and the 100 metre Olympic sprint title at the 1980 Moscow Games.