01/05/2012 02:12 pm ET Updated Mar 06, 2012

Peaches Geldof Pregnant: Sir Bob's Daughter Announces She's Expecting First Child (PHOTOS)

A true OMG moment everyone - Peaches Geldof is going to be responsible for another human being as she has revealed she is pregnant.

The socialite has announced she is expecting her first child with her rocker fiancé Thomas Cohen.

In a statement, Peaches' spokesperson said the couple are "utterly thrilled" at the news:

"Peaches Geldof and her fiancé Thomas Cohen are delighted to announce that Peaches is pregnant with their first child.

"Peaches is utterly thrilled and they have the full support of both of their families who are equally excited for the baby's arrival."

Thomas proposed to Peaches last summer after having dated for a year, but only announced the news last month.

Peaches told The Mirror: "Yes, I'm engaged! We don't want to get married for a couple of years yet though so don't expect me in a dress yet. I'm so happy!"

They first met four years ago, but Peaches went on to marry Max Drummey in a short lived union.

The couple also moved into a plush Victorian three-bed pad in East London last year but reveals she had trouble buying the house.

She told The Mirror: "It's such a strange, adult territory. They nearly didn't let me have it - maybe it's because they recognized me."

See pics of Peaches and her uber eclectic style through the years: