Christina Aguilera is supposedly pregnant with her second child.

The 33-year-old singer announced her engagement to 29-year-old production assistant Matt Rutler last week.

And according to People magazine the couple are now expecting their first child together.

“They’re very much in love and are really excited to take this next step!” a source told the publication.

Christina and Matt began dating after they met on the set of her 2010 film Burlesque.

And the star happily informed her fans of their impending union over Valentine’s Day weekend.

“He asked and I said……,” she wrote in a coy message to her 11.6 million Twitter followers, which was attached to an image of her sporting a huge engagement ring while holding hands with her beau above a beautiful beach setting.

Apparently Matt pulled out all the stops to ensure his proposal was perfect.

He is said to have crafted every detail with precision, and it’s rumoured he put his all into creating the perfect ring for his future wife.

"Matt spent over a year designing the ring with the ring designer to represent their three-year journey together as a couple," an insider revealed previously. "He has been planning this for a while and was just waiting for the right time - the ring has been done for months. Every single placement of each stone has a reason and meaning."

Christina’s divorce from ex-husband Jordan Bratman was finalised in April 2011, six years after their 2005 wedding. Around the time she officially separated from Jordan in late 2010, the singer began dating Matt.

Christina shares six-year-old son Max Bratman with former flame Jordan.