Rashida Jones. Photo / Getty

Rashida Jones appears to have welcomed her first baby.

The 42-year-old actress reportedly gave birth to her child 'a few months ago' and no one noticed until now, UsWeekly has claimed. The father is her partner of two years, Ezra Koenig, the 34-year-old Vampire Weekend musician according to DailyMail.

Later E! News claimed she welcomed the baby on August 22 in LA and named her son Isaiah Jones Koenig.

On Tuesday the beauty appeared to be bump free in a white dress as she attended the Q 85: A Musical Celebration for her father Quincy Jones event in Los Angeles.

It is not known why Rashida and Ezra have yet to confirm they welcomed their child.

Their reps have not returned calls to DailyMail.com.

In March Rashida showed off her bump in a pink dress at the Vanity Fair Oscar party in Beverly Hills.

In 2014 she said she was fine with not having kids.

'My life's great! But it's just this weird thing that's been hammered into my head culturally: that's the only way to succeed, that's the only thing that counts for a woman,' she said at the time.

'I'm happy, but the fact that I'm not married and don't have kids — it's taken me a long time to get to a place where I actually am OK with that, where I actually don't feel like I'm some sort of loser.'

She was previously engaged to Mark Ronson and has dated John Krasinski, Colin Jost and Jon Favreau.