Lily Allen Pregnant (Photo : Reuters )

Lily Allen is officially on baby bump watch. The British singer is reportedly expecting her second child with her husband, Sam Cooper.

The Daily Mirror reports that Allen is already three months along and the couple are "over the moon" about the new bundle of joy.  Allen and her husband welcomed their first child, baby girl Ethel Mary last November.

Lily Allen isn't keeping her news much of a secret. An insider said, "Lily has started telling her friends, and everybody in her close circle is so excited for her." The pregnancy comes as a pleasant surprise to the Allen-Cooper family. Friends of the couple said, "Lily and Sam are thrilled. The pair of them have loved every minute of parenthood so far and wanted to expand their brood quickly. So it's great timing."

As far as releasing details to the press, Allen ever so slightly hinted to her good news with a tweet.

"Thank you for all your congratulations", she tweeted Sunday, also adding that she has been listed in the Sunday Times Magazine's list of top 50 tweeters. "I honestly couldn't be happier. Such an honour to be on the list! #Timestop50tweeter," Allen coyly wrote afterwards.

The popstar, who is currently working on a new album, was worried about her pregnancy being exposed to the public when she was recently spotted in London wearing baggy clothing. She's beginning to show. A source says, "Her bump has popped out very early - far earlier than the last pregnancy. She's been joking she feels six months pregnant already."

Lily Allen and Sam Coopeer tied the knot last June in Gloucestershire, England while she was pregnant with her first child. The couple has suffered two previous two miscarriages, making this pregnancy an extra special and joyous occasion.

PEOPLE reports that Allen is due in December. 

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