Eva Mendes is reportedly seven months pregnant.

The 40-year-old actress is said to be thrilled to be expecting her first child with boyfriend Ryan Gosling as she has been keen to have children for some time.

A source told America's OK! magazine: ''She's been ready for motherhood for a while now and to be sharing this experience with Ryan is a dream come true for her!''

While the 33-year-old actor - who has been dating his 'Place Beyond the Pines' co-star for three years - is said to be fully committed to the relationship, he doesn't share his girlfriend's desire to settle down and get married.

A source said: ''Ryan grew up without a dad, so he always said when he had kids, he'd be there no matter what.

''This is it for him.''

Another source added: ''Ryan doesn't think they need to marry just because they are having a baby but Eva believes it's important to have their lives fully intertwined.''

Eva recently said working with Ryan on his directorial debut, 'How to Catch a Monster', was the ''most beautiful experience'' she's ever had.

She said: ''It's actually the most beautiful experience I've ever had working on a film.

''He really created the most beautiful, collaborate, creative atmosphere on set. I know I'm biased but I don't think it's just coming from me, he's the best.''