On three, everybody? Alright: 1… 2… 3 awwwweee!

Actress Sienna Miller has stepped out with her daughter Marlowe and fiance Tom Sturridge (AKA’d to Twihards as R-Pattz’s BFF), and from the little glimpse we’re getting of the newborn girl, she’s adorable!

The 30-year-old has had her share of motherly duties while dating Jude Law for two extended stints, but this is the first biological child for the British actress.

“She’s so cute,” Miller recently said about the baby girl. “She’s screaming upstairs. My brain doesn’t work.”

A baby screaming so much that you feel like your brain doesn’t work? Hmm.. sounds great.

The couple plans on raising the child, who’s full name is Marlowe Ottoline Layng Sturridge, in England for most of the year and in LA for the rest.