It looks like there might be another celebrity baby set to arrive in 2012.
Sienna Miller, 30, is reportedly expecting a child with 25-year-old boyfriend Tom Sturridge, according to reports in the US.
The couple, who have been together for a year, "spent the holidays in Paris together after they announced the news in London," the source revealed.
"Friends are really happy with her relationship with Tom. He's younger, yes, but he's mature and he's a good guy.
“They don’t have plans right away to marry, if at all."
Whilst Sienna’s representative could not be reached for comment, a spokesperson for actor Tom - who is pals with Robert Pattinson - said: "We don't comment on our client's personal lives at all."
It's a little princess!