To mark 100 Days to Go to the Opening Ceremony, the Glasgow 2014 Commonwealth Games Medals were revealed to the public for the first time.
It is now 100 days to go until the beginning of the 2014 Commonwealth Games in Glasgow.
The Queen's baton relay will visit 400 communities and pass landmarks such as Loch Ness and the Glenfinnan Viaduct as it tours Scotland.
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.
British Athletics tweeted:
Jessica Ennis-Hill has announced she is pregnant and will miss the 2014 Commonwealth Games in Glasgow, Sky Sports News reported.
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.
Britain's most successful Olympian Sir Chris Hoy told ITV News his "body made the decision" not to compete in the 2014 Glasgow Commonwealth Games.
Sir Chris added that he had "mixed feelings" about not taking part but looked forward to enjoying it as a spectator.
Sir Chris Hoy has made a triumphant journey to Buckingham Palace carrying the Commonwealth Games baton ahead of the start of the sporting event's global relay.
Britain's most successful Olympian was given the honour of processing the symbol of Glasgow 2014 down The Mall before the Queen launches the baton on its epic trip.
The cyclist, who has retired from competitive racing after winning a clutch of Olympic, World and Commonwealth titles, was joined by the Pipes and Drums 1st Battalion Scots Guards and the Pipes and Drums 1st Battalion the Royal Regiment of Scotland (Royal Scots Borderers).
Scottish athlete Allan Wells will start the Commonwealth relay after the queen hands him the ceremonial baton at Buckingham Palace later today, according to Games officials.
Mr Wells took home gold in 100 metres and silver in the 200 metres at the 1980 Moscow Olympics.
– Allan Wells
As the final runner of the Queen's Baton Relay (QBR) at the last Commonwealth Games on Scottish soil in Edinburgh in 1986, the baton and what it symbolises is incredibly special for me.
It is a real honour for me to now be named as the first baton bearer for the Glasgow 2014 Commonwealth Games.
The baton will go on to visit every nation and territory of the Commonwealth, travelling through Asia, Oceania, Africa, North and South America, the Caribbean and Europe.
Photos of the baton for next year's Commonwealth Games have been released and a secret message to athletes written by the Queen is "at the heart" of the design.
Her majesty's message is inscribed on parchment made by hand in Glasgow, using linen and plant fibre.
It will be lit up from within by LED lights, but remain unreadable until the opening ceremony.
Organisers said the lattice is inspired by Glasgow's "rich industrial and architectural heritage".
The handle is made from elm wood found in the grounds of Garrison House on the Isle of Cumbrae and is a "tribute" to Scotland's natural resources.