Congrats to actress Sienna Miller who will be joining the ranks of nearly every other woman in Hollywood in the past year, as she is going to become a mommy for the first time ever.

The 30 year-old actress is pregnant with her first child. The father is Sienna's 26 year-old boyfriend, Tom Sturridge, whom she's been dating for about a year.

'Friends are really happy with her relationship with Tom,' a source told Us Weekly. 'He's younger, yes, but he's mature and he's a good guy.'

Read: he's not banging nannies on the regular. Just saying!

The source adds that Miller's family 'had had it with Jude Law and his cheating and all the back and forth.'

Sources say Sienna and Tom are really good together. 'They just spent the holidays in Paris together after they announced the news in London.'

Sturridge is also BFFs with Robert Pattinson, and back in September, Sienna and and Tom went on a double date with Pattinson and his girlfriend, Kristen Stewart..